Re: Nested dictionaries trouble
In <[EMAIL PROTECTED]>, IamIan wrote: > years = ["199%s" % x for x in range(0,10)] > years += ["200%s" % x for x in range(0,10)] > > I haven't had any luck doing this in one line though. Is it possible? In [48]: years = map(str, xrange(1999, 2011)) In [49]: years Out[49]: ['1999', '2000', '2001', '2002', '2003', '2004', '2005', '2006', '2007', '2008', '2009', '2010'] Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: Compiling python from soruce vs RPM ?
howa wrote: > I have compiled python 2.5 from source > > i.e. > > ./configure > make > make install > > > but when i try to install another package require python, seems it > can't regonize python... > > e.g.. > > > /usr/bin/python is needed by xyz Does "/usr/bin/python" exist ? Why haven't you installed via rpm ? H. -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
[EMAIL PROTECTED] wrote: > If this were just a tool for me, it wouldn't matter. My concern is > distribution. If anybody who wants to run my software then they also > have to go through all the trouble to install these extensions, none > of which seem to have decent instructions. I'm an old-time hack and I > have trouble getting them to work. A simple user won't have a chance! > > If Python doesn't declare an official Gui system, then it'll be > fragmented, inconsistent, and unsupportable. I guess that's why Tkinter, despite its primitive look, has made its way into the Python-distribution and I think, for the same reason it will stay there, until it can be replaced by something similar consistent. H. -- http://mail.python.org/mailman/listinfo/python-list
Re: Help Understanding mx.ODBC Error
Steve,
As always, thanks for your consistent help on matters big and small.
I've managed to solve the problem, although I'm scared b/c the bug is still
elusive.
I dumped and deleted my seperate Access DBs, created new ones and tried
running the scripts on old data (that these scripts were able to digest
successfully before) and new data (that they errored on to begin with).
Everything works without me changing any code around. Hmm?
I don't know much about Access or the JetEngine. Is it possible that .mdbs
can go corrupt if overused? This seems unlikely, but I'm dumbfounded.
Thanks again
Greg Corradini
Steve Holden wrote:
>
> Greg Corradini wrote:
>> Hello All,
>> A few weeks ago, I wrote two scripts using mx.ODBC on an Access DB. Among
>> other things, both scripts create new tables, perform a query and then
>> populate the tables with data in a dictionary that I've uploaded from
>> elsewhere. These scripts have run hundreds of times in the last few weeks
>> with no problems.
>>
>> But recently they continue to bail on the mycursor.execute('An SQL
>> Statement') after the table has been created. I get the following error
>> message:
>> Traceback (most recent call last):
>> File "C:\Documents and Settings\marv1shi\Desktop\Workspace\Existence
>> Script\DBF Checker\Access_SQL.py", line 35, in ?
>> curse.execute(sql)
>> ProgrammingError: ('07001', -3010, '[Microsoft][ODBC Microsoft Access
>> Driver] Too few parameters. Expected 4.', 4612)
>>
>> The real stinker, however, is that after it bails I can manually call
>> mycursor.execute('An SQL Statement'), then call my insert statement in
>> the
>> Python Shell and it works fine.
>>
>> I just can't figure out how to reconcile this problem. Has anybody run
>> into
>> this before?
>>
>> Thanks
>> Greg Corradini
>
> I suspect what's happening here is that you are presenting statements
> you have made up programmatically, and the values you are trying to
> insert include apostrophes that break the syntax of your SQL. However
> there isn't really enough evidence to decide unless you are prepared to
> show us the error traceback, possibly with a dump of the SQL statement
> you are actually trying to execute.
>
> I apologize in advance if you are using parameterized queries (as you
> should to avoid SQL injection vulnerabilities among other major
> problems) but this message is typical of Access when it sees words it
> can't parse.
>
> regards
> Steve
> --
> Steve Holden +44 150 684 7255 +1 800 494 3119
> Holden Web LLC/Ltd http://www.holdenweb.com
> Skype: holdenweb http://del.icio.us/steve.holden
> Recent Ramblings http://holdenweb.blogspot.com
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>
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PY shutil on win xp home version
python help, A client is using win xp home. my program contains; shutil.copyfile(n, 'prn') This runs fine on win xp pro but they are getting the following traceback. File "LOP_PRT_10.pyc", line 170, in __init__ File "LOP_PRT_10.pyc", line 188, in Fprint1 File "shutil.pyc", line 47, in copyfile IOError: [Errno 2] No such file or directory: 'prn' Since this runs ok on win xp pro, does this have something to do with the home version of xp. I'm thinking of changeing 'prn' to 'lpt1' and trying again but I don't want to use the client as a testor. Or is there some other explaination for the problem. jim-on-linux -- http://mail.python.org/mailman/listinfo/python-list
python-list@python.org
On Apr 18, 12:23 pm, Anton Vredegoor <[EMAIL PROTECTED]> wrote: (snipped) > But still, the 'while True:' loop and the 'try-except' clause and the > explicit StopIteration are not necessary ... > > from collections import deque > > def xsplitter(seq, pred): > Q = deque(),deque() > it = iter(seq) > def gen(p): > while Q[p]: yield Q[p].popleft() > for x in it: > if pred(x) == p: yield x > else: > Q[~p].append(x) > for x in gen(p): yield x > return gen(1),gen(0) > > def test(): > L = 1, 'a', 3, 'a', 4, 5, 6, 'a' > it1, it2 = xsplitter(L, lambda x: x == 'a') > print it1.next() > print it2.next() > print it1.next() > > if __name__=='__main__': > test() > > A. Try it with def test(): L = 'a', 1, 2, 'a' it1, it2 = xsplitter(L, lambda x: x == 'a') print it1.next() print it2.next() print it1.next() print it2.next() The last print statement raises StopIteration... We, however, expected each iterator to contain two elements (one yielding 'a' then 'a', and the other yielding 1 then 2). -- Regards, Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode data - accessing codepoints > FFFF on narrow python builts
Hi, thanks for the answer,
> From: Gabriel Genellina <[EMAIL PROTECTED]>
> Subj: Re: unicode data - accessing codepoints > on narrow python builts
> Datum: 18.4.2007 21:33:11
>
>
> py> x=u"\N{GOTHIC LETTER AHSA}"
> py> ord(x)
> Traceback (most recent call last):
>File "", line 1, in
> TypeError: ord() expected a character, but string of length 2 found
> py> unicodedata.name(x)
> Traceback (most recent call last):
>File "", line 1, in
> TypeError: need a single Unicode character as parameter
> py> len(x)
> 2
> py> list(x)
> [u'\ud800', u'\udf30']
>
> That looks like UTF-16 (?) but seen as two characters instead of one.
> Probably in a 32bits build Python should refuse to use such character (and
> limit Unicode support to the basic plane?) (or not?) (if not, what's the
> point of sys.maxunicode?) (enough parenthesis for now).
>
> --
> Gabriel Genellina
>
Yes, this is a UTF-16 surrogate pair, which is, as far as I know the usual way
the characters outside the basic plane are handled on narrow python builds.
There are some problems with it, but most things (I need) with non-basic plane
characters can be done this way (GUI display, utf-8 text saving) - thus I
wouldn't be happy, if this support were removed.
The problem is the access to unicodedata, which requires "a string of length
1"; I thought, it could also accept the codepoint number, but it doesn't seem
to be possible.
Thanks again.
vbr - Vlastimil Brom
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Re: Future Python Gui?
[EMAIL PROTECTED] napisał(a): > If this were just a tool for me, it wouldn't matter. My concern is > distribution. If anybody who wants to run my software then they also > have to go through all the trouble to install these extensions, none > of which seem to have decent instructions. I'm an old-time hack and I > have trouble getting them to work. A simple user won't have a chance! I am not a hacker, just a software developer, but I'd have no problems in either installing PyGTK on Ubuntu box (sudo apt-get install python-gtk2, but it's installed by default anyway) or on Windows XP machine (double click on installer icon). "Simple user" is not an idiot either and if she can read English, she wouldn't have hard time too. The rumours on "problems installing GUI toolkits" are greatly exagerated IMO. -- Jarek Zgoda http://jpa.berlios.de/ -- http://mail.python.org/mailman/listinfo/python-list
Re: converting currency using locals
Dnia Wed, 18 Apr 2007 19:38:26 +0100, Michael Hoffman napisał(a): > Grzegorz Ślusarek wrote: >> Hi all. I have situation that I have value that holds price and I must show >> this price using national specification(e.g. thousands_sep). Any idea how >> this can be done under python 2.4.4? I saw that function format from module >> locals can format value with national specification, but this could be done >> only in python 2.5. Any solution for 2.4? > > I think you mean locale, for anyone else who was puzzled by this. Upss, I'm sorry ofcourse I was thinking about locale. Grzegorz Ślusarek -- http://mail.python.org/mailman/listinfo/python-list
Re: Python crash after using weave inline
Soren,
For future reference, you might want to direct weave-related questions
to the [EMAIL PROTECTED] mailing list.
> def cartPolFast(xlen, ylen, x_c, y_c):
>
> res = zeros((xlen,ylen))
>
> code = """
> {
> int xlen, ylen, x_c, y_c;
This line is unnecessary, because weave exposes those variables inside
the local scope of your code. This also makes the braces at the top
and bottom of the code block unnecessary.
> for( x = 0; x == xlen; x++)
>for( y = 0; y == ylen; y++)
> rel_x = x-x_c;
> rel_y = y_c-y;
>
> res(x,y) = rel_y*rel_y;
> }
Two things:
1. You need to put curly braces around the three lines of the inner
loop.
2. You need to change "x == xlen" and "y == ylen" to "x < xlen" and "y
< ylen".
I made these modifications to your code and it runs fine on my machine
(macbook pro, OS 10.4, scipy 0.5.2.dev2314).
-peter
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Re: Future Python Gui?
> The rumours on "problems installing GUI toolkits" are greatly exagerated Not at all !! As an experienced computer user, I yesterday installed a well known Python package on a clean winXP machine, and it costed me be about 1.5 .. 2 hours !! There are always unexpected situations, I think software developers call them "new features" ;-) cheers, Stef Mientki -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
[EMAIL PROTECTED] wrote: >> Tile is available right now in Tk as an extension package, and a Tkinter >> wrapper for it can be found here: >> >> http://tkinter.unpythonic.net/wiki/TileWrapper > > That site seems to be down (500 Internal Server Error). > > >> Tile will be integrated into Tk's core when 8.5 is released. It's >> supposed to enter beta testing Real Soon Now. However, I imagine that >> Python/Tkinter will depend on Tk 8.4 for the foreseeable >> future--certainly 8.5 won't be supported officially before a full, >> stable release is made. Perhaps in Python 2.6? > > That is okay with me. It'll be a long time before I get to a point > where I'll need easy release. But knowing that it will be part of a > future release will also mean I don't have to worry about refactoring > everything if the toolkit I'm using goes out of style and is replaced > by something else. > > Out of curiosity... Did that page have install instructions for > Tile? Other pages I've seen talk about it but don't say how to > integrate it in to a python installation (under Windows or Linux). > > -- Brian > On Windows, the easiest way to install Tile is to grab it from ActiveState's Tcl distribution (http://www.activestate.com/products/activetcl/) and then place it with the Tcl/Tk bits that come with Python. The Tcl/Tk build for Windows that python.org provides doesn't ship with Tile. You'll also have to install the Tile wrapper at the site I referenced earlier in your site-packages directory. -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Python crash after using weave inline
On Apr 18, 10:07 pm, Peter Wang <[EMAIL PROTECTED]> wrote:
> Soren,
>
> For future reference, you might want to direct weave-related questions
> to the [EMAIL PROTECTED] mailing list.
>
> > def cartPolFast(xlen, ylen, x_c, y_c):
>
> > res = zeros((xlen,ylen))
>
> > code = """
> > {
> > int xlen, ylen, x_c, y_c;
>
> This line is unnecessary, because weave exposes those variables inside
> the local scope of your code. This also makes the braces at the top
> and bottom of the code block unnecessary.
>
> > for( x = 0; x == xlen; x++)
> >for( y = 0; y == ylen; y++)
> > rel_x = x-x_c;
> > rel_y = y_c-y;
>
> > res(x,y) = rel_y*rel_y;
> > }
>
> Two things:
> 1. You need to put curly braces around the three lines of the inner
> loop.
> 2. You need to change "x == xlen" and "y == ylen" to "x < xlen" and "y
> < ylen".
>
> I made these modifications to your code and it runs fine on my machine
> (macbook pro, OS 10.4, scipy 0.5.2.dev2314).
>
> -peter
Thanks alot Peter!
I'm a bit rusty on the C! :)
Soren
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Re: Help Understanding mx.ODBC Error
Greg Corradini wrote:
[actually, her wrote it here but I moved it to the bottom]
> Steve Holden wrote:
>> Greg Corradini wrote:
>>> Hello All,
>>> A few weeks ago, I wrote two scripts using mx.ODBC on an Access DB. Among
>>> other things, both scripts create new tables, perform a query and then
>>> populate the tables with data in a dictionary that I've uploaded from
>>> elsewhere. These scripts have run hundreds of times in the last few weeks
>>> with no problems.
>>>
>>> But recently they continue to bail on the mycursor.execute('An SQL
>>> Statement') after the table has been created. I get the following error
>>> message:
>>> Traceback (most recent call last):
>>> File "C:\Documents and Settings\marv1shi\Desktop\Workspace\Existence
>>> Script\DBF Checker\Access_SQL.py", line 35, in ?
>>> curse.execute(sql)
>>> ProgrammingError: ('07001', -3010, '[Microsoft][ODBC Microsoft Access
>>> Driver] Too few parameters. Expected 4.', 4612)
>>>
>>> The real stinker, however, is that after it bails I can manually call
>>> mycursor.execute('An SQL Statement'), then call my insert statement in
>>> the
>>> Python Shell and it works fine.
>>>
>>> I just can't figure out how to reconcile this problem. Has anybody run
>>> into
>>> this before?
>>>
>>> Thanks
>>> Greg Corradini
>> I suspect what's happening here is that you are presenting statements
>> you have made up programmatically, and the values you are trying to
>> insert include apostrophes that break the syntax of your SQL. However
>> there isn't really enough evidence to decide unless you are prepared to
>> show us the error traceback, possibly with a dump of the SQL statement
>> you are actually trying to execute.
>>
>> I apologize in advance if you are using parameterized queries (as you
>> should to avoid SQL injection vulnerabilities among other major
>> problems) but this message is typical of Access when it sees words it
>> can't parse.
>>
> Steve,
> As always, thanks for your consistent help on matters big and small.
> I've managed to solve the problem, although I'm scared b/c the bug is
still
> elusive.
> I dumped and deleted my separate Access DBs, created new ones and tried
> running the scripts on old data (that these scripts were able to digest
> successfully before) and new data (that they errored on to begin with).
> Everything works without me changing any code around. Hmm?
>
> I don't know much about Access or the JetEngine. Is it possible that
.mdbs
> can go corrupt if overused? This seems unlikely, but I'm dumbfounded.
Greg:
No, there are no known cases of a database getting "tired" :-)
It sounds like a data dependency of some sort, but if the error has
"gone away" then I guess we no longer have anything to work with. This
is somewhat annoying, as I hate to see an error go untraced.
Take it from me, it does look like a SQL error - *are* you building your
statements in the program, or are you using proper parameterization with
"?" in your statements where a parameter would go?
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://del.icio.us/steve.holden
Recent Ramblings http://holdenweb.blogspot.com
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Re: image sequence to Quicktime movie
I haven't experimented with it myself, but you'll probably find what you need here. (Only works on original mac python distribution) [sean:~] sean% python Python 2.3.5 (#1, Aug 12 2006, 00:08:11) [GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> from Carbon import Qt >>> dir(Qt) ['AddSoundDescriptionExtension', 'AddTime', 'AlignWindow', 'CanQuickTimeOpenDataRef', 'CanQuickTimeOpenFile', 'ClearMoviesStickyError', 'CloseMovieFile', 'ConvertTime', 'ConvertTimeScale', 'CreateMovieFile', 'CreateShortcutMovieFile', 'DeleteMovieFile', 'DisposeMatte', 'DragAlignedWindow', 'EndFullScreen', 'EnterMovies', 'Error', 'ExitMovies', 'FlashMediaDoButtonActions', 'FlashMediaFrameLabelToMovieTime', 'FlashMediaFrameNumberToMovieTime', 'FlashMediaGetDisplayedFrameNumber', 'FlashMediaGetFlashVariable', 'FlashMediaGetRefConBounds', 'FlashMediaGetRefConID', 'FlashMediaGetSupportedSwfVersion', 'FlashMediaIDToRefCon', 'FlashMediaSetFlashVariable', 'FlashMediaSetPan', 'FlashMediaSetZoom', 'FlashMediaSetZoomRect', 'GetDataHandler', 'GetMovieImporterForDataRef', 'GetMoviesError', 'GetMoviesStickyError', 'GetSoundDescriptionExtension', 'Media', 'Media3DGetCameraAngleAspect', 'Media3DGetCameraData', 'Media3DGetCameraRange', 'Media3DGetCurrentGroup', 'Media3DRotateNamedObjectTo', 'Media3DScaleNamedObjectTo', 'Media3DSetCameraAngleAspect', 'Media3DSetCameraData', 'Media3DSetCameraRange', 'Media3DTranslateNamedObjectTo', 'MediaType', 'Movie', 'MovieController', 'MovieControllerType', 'MovieType', 'MoviesTask', 'MusicMediaGetIndexedTunePlayer', 'NewMovie', 'NewMovieFromDataFork', 'NewMovieFromDataFork64', 'NewMovieFromDataRef', 'NewMovieFromFile', 'NewMovieFromHandle', 'NewMovieFromScrap', 'NewTimeBase', 'NewUserData', 'NewUserDataFromHandle', 'OpenMovieFile', 'PasteHandleIntoMovie', 'QTDismissStandardParameterDialog', 'QTGetMIMETypeInfo', 'QTIsStandardParameterDialogEvent', 'QTNewAlias', 'QTRegisterAccessKey', 'QTStandardParameterDialogDoAction', 'QTTextToNativeText', 'QTUnregisterAccessKey', 'RemoveMovieResource', 'RemoveSoundDescriptionExtension', 'SpriteMediaCountImages', 'SpriteMediaCountSprites', 'SpriteMediaDisposeSprite', 'SpriteMediaGetActionVariable', 'SpriteMediaGetActionVariableAsString', 'SpriteMediaGetDisplayedSampleNumber', 'SpriteMediaGetImageName', 'SpriteMediaGetIndImageDescription', 'SpriteMediaGetProperty', 'SpriteMediaGetSpriteName', 'SpriteMediaGetSpriteProperty', 'SpriteMediaHitTestAllSprites', 'SpriteMediaHitTestOneSprite', 'SpriteMediaHitTestSprites', 'SpriteMediaSetActionVariable', 'SpriteMediaSetActionVariableToString', 'SpriteMediaSetProperty', 'SpriteMediaSetSpriteProperty', 'SpriteMediaSpriteIDToIndex', 'SpriteMediaSpriteIndexToID', 'SubtractTime', 'TextMediaAddHiliteSample', 'TextMediaAddTESample', 'TextMediaAddTextSample', 'TextMediaDrawRaw', 'TextMediaFindNextText', 'TextMediaGetTextProperty', 'TextMediaHiliteTextSample', 'TextMediaRawIdle', 'TextMediaRawSetup', 'TextMediaSetTextProperty', 'TextMediaSetTextSampleData', 'TimeBase', 'TimeBaseType', 'Track', 'TrackTimeToMediaTime', 'TrackType', 'UserData', 'UserDataType', 'VideoMediaGetCodecParameter', 'VideoMediaGetStallCount', 'VideoMediaGetStatistics', 'VideoMediaResetStatistics', 'VideoMediaSetCodecParameter', '__builtins__', '__doc__', '__file__', '__name__'] >>> ~Sean On Apr 18, 10:16 am, Simon Cassels <[EMAIL PROTECTED]> wrote: > did u ever find anything out about this ? > > if so can you help me with some leads i am trying to figure an action > that can convert image files to quicktime automatically. > > cheers > simon -- http://mail.python.org/mailman/listinfo/python-list
Re: Martel Package from Biopython
On Apr 18, 12:28 pm, elventear <[EMAIL PROTECTED]> wrote: > Hello, > > I know this is not the best place to ask this but I haven't had luck > in the Biopython forums with my questions, so I'll just try here. > > I want to use the Martel package to do some parsing. I've found it to > be very powerful and convenient. Yet the documentation avaialble is > less than complete. I have a few questions on how to use it, if you > know the answers to my questions: > > - How does Bio.Std.record affect the parsing of a Martel expression. > - How does Bio.RecordReader work? How does it interact with > Martel.HeaderFooter? > - Many of the matching objects (ie. Martel.Digits) have an attrs > argument. How does it work? > > Thanks! Andrew Dalke says in his blog that he finds pyparsing to be similar in concept to Martel. I looked over the Martel presentations at his web site, and I can see some similarities, but pyparsing has some of its own peculiarities, too. So if Martel remains a mystery, you could give pyparsing a shot. Pyparsing tries to make parser-writing a less painful process, so it incorporates some conventions - most notably, pyparsing assumes that whitespace is significant for the purposes of word boundaries and such, but you grammar does not need to explicitly spell out where whitespace would go. Or try one of these other parsing packages on Ned Batchelder's web page: http://nedbatchelder.com/text/python-parsers.html. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
tkinter canvas
how to write text on canvas. i know that i need to use canvas.create_text, but how to write text than when i create_text? or how to access object ID in canvas and change some options? thanks in advance! -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
On Apr 18, 11:24 am, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > > I'd say that the best bet is to learn swig and similar > > bridging, expanding, and embedding mechanisms. > > Python GUI programming is likely to involve either > > python hooking into frameworks like Cocoa, Qt, or > > wxWidgets, python embedded in frameworks > > like Java or .NET, or flavors of python used > > as domain-specific languages in applications such as > > emacs, vim, and OpenOffice.org. > > If this were just a tool for me, it wouldn't matter. My concern is > distribution. If anybody who wants to run my software then they also > have to go through all the trouble to install these extensions, none > of which seem to have decent instructions. I'm an old-time hack and I > have trouble getting them to work. A simple user won't have a chance! Deployment has improved a lot in recent years, PyObjC is a simple double-click on a package. Most windows libraries work the same way. On the FOSS Unix world, you would add to a package system which will install dependencies automatically. When I used a FOSS Unix, I really only got burned when I decided to live on the bleeding edge. And as someone else pointed out, package tools should take much of the work out of delivery. Meanwhile, things could work the other way around. If Apple extends their support to PyObjC for example, python developers would know that every new OS X system would be able to run their PyObjC. > If Python doesn't declare an official Gui system, then it'll be > fragmented, inconsistent, and unsupportable. I don't see that as the case because many other languages don't have an "official" GUI system including C, C++, Ruby, lisp, Basic and perl. All of these have their active areas of deployment. For that matter, Java has three "official" GUI systems with most development on the server side. And didn't comp.long.python have this same argument in regards to MySQL support which was dropped from php? In addition to license issues, the php core library just wasn't used, and lagged behind the MySQL library. My personal opinion is that GUI development is such a moving target that toolkits are a poor choice for inclusion into the core standard libraries. There does not appear to be a standards process involved, and toolkits are expanding or changing parts of their API every few years. Anything that could be added, is going to be obsolete by the time it is incorporated into the standard. My feeling is that python is better served by encouraging GUI developers to include python- friendly bindings. > I wouldn't mind using just Tkinter, despite it's primative look, > except that it doesn't support more advanced widgets like "notebook". I wouldn't mind seeing tkgrid and tkhtml added to the standard library. But Tk is probably "good enough" for most simple interfaces. > > -- Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode data - accessing codepoints > FFFF on narrow python builts
Hi, thanks for your answer, I'll try to check the source of unicodedata; Using the wide Unicode build seems to be a kind of overkill for now, as for the vast majority of my uses, the BMP is enough. I was rather looking for some "lower-cost" alternatives for those rare cases, when I need higher multilingual planes. Thanks again, Vlastimil Brom - vbr > From: "Martin v. Löwis" <[EMAIL PROTECTED]> > Subj.: Re: unicode data - accessing codepoints > on narrow python builts > Datum: 18.4.2007 21:37:39 > > > Is it a bug in unicodedata, or is this the expected behaviour on a > > narrow build? > > It's a bug. It should either raise an exception, or return the correct > result. If you know feel like submitting a bug report: please try to > come up with a patch instead. > > > Another problem I have is to access the "characters" and their > > properties by the respective codepoints: under it is possible, > > to use unichr(), which isn't valid for higher valules on a narrow > > build It is possible to derive the codepoint from the surrogate pair, > > which would be usable also for wider codepoints. > > See PEP 261. This is by design. > > > Currently, I'm using a kind of parallel database for some unicode > > ranges above , but I don't think, this is the most effective way. > > Just use a wide Unicode build instead. > > Regards, > Martin > -- > http://mail.python.org/mailman/listinfo/python-list > > > -- http://mail.python.org/mailman/listinfo/python-list
Re: PY shutil on win xp home version
jim-on-linux wrote: > python help, > > A client is using win xp home. > > my program contains; >shutil.copyfile(n, 'prn') > > This runs fine on win xp pro but they are getting > the following traceback. > > File "LOP_PRT_10.pyc", line 170, in __init__ > File "LOP_PRT_10.pyc", line 188, in Fprint1 > File "shutil.pyc", line 47, in copyfile > IOError: [Errno 2] No such file or directory: > 'prn' > > Since this runs ok on win xp pro, does this have > something to do with the home version of xp. > > I'm thinking of changeing 'prn' to 'lpt1' and > trying again but I don't want to use the client > as a testor. Or is there some other explaination > for the problem. Not that this is your question, but if you're trying to print under Windows have you looked at: http://tgolden.sc.sabren.com/python/win32_how_do_i/print.html for alternatives? TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
>> I wouldn't mind using just Tkinter, despite it's primative look, >> except that it doesn't support more advanced widgets like "notebook". When Tile becomes part of the core Tk library, it should be accessible from Tkinter as well. Tile has a nice notebook widget. See http://tktable.sourceforge.net/tile/screenshots/windowsxp.html, http://tktable.sourceforge.net/tile/screenshots/macosx.html and http://tktable.sourceforge.net/tile/screenshots/unix.html. > I wouldn't mind seeing tkgrid and tkhtml added to the standard > library. But Tk is probably "good enough" for most simple > interfaces. I'm not sure what tkgrid is: isn't that the standard Tk "grid" algorithm? If so, it's already accessible from Tkinter. As for Tkhtml, it's undergoing *heavy* development: it's moving from a lightweight, basic HTML renderer into a full-featured browser widget with CSS support: see http://tkhtml.tcl.tk/ and http://tkhtml.tcl.tk/hv3.html and http://tkhtml.tcl.tk/screenshot1.gif. The drawbacks are that it's currently at an alpha stage, and while the hv3 browser based on Tkhtml 3 is very impressive, it's overkill for the simple display of HTML--and the API for constructing a simpler widget seems to be very complex. As well, because it's still alpha, no one has wrapped it for Tkinter as of yet. -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
.
.
.
>I wouldn't mind using just Tkinter, despite it's primative look,
>except that it doesn't support more advanced widgets like "notebook".
.
.
.
"Tile" has already been mentioned in this thread, and I know
there'll be at least one more follow-up on the subject. Tile
includes a ("native"!) notebook, as well as a combobox, tree-
view, ... http://wiki.tcl.tk/11075 >.
I recognize that Tile might not be widely installed until 2.6
or so.
--
http://mail.python.org/mailman/listinfo/python-list
Installing Python on NT
___ Hillary Schwartz Applications Specialist, IT - Development Lerner, Sampson & Rothfuss, LPA Phone: (513) 241-3100 x3138 [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Python Threads -
Hi All, Can you please suggest a technique in Python where we can spawn few number of worker threads and later map them to a function/s to execute individual Jobs. Any references would be helpful.. Thanks Moin -- http://mail.python.org/mailman/listinfo/python-list
Antigen Notification: Antigen found a message matching a filter
Microsoft Antigen for Exchange found a message matching a filter. The message is currently Detected. Message: "Python_list Digest_ Vol 43_ Issue 299" Filter name: "KEYWORD= spam: xxx " Sent from: "[EMAIL PROTECTED]" Folder: "SMTP Messages\Inbound And Outbound" Location: "ITURAN/First Administrative Group/VITORIA" -- http://mail.python.org/mailman/listinfo/python-list
Re: tkinter canvas
On Apr 18, 3:43 pm, Gigs_ <[EMAIL PROTECTED]> wrote: > how to write text on canvas. i know that i need to use canvas.create_text, but > how to write text than when i create_text? > or how to access object ID in canvas and change some options? > > thanks in advance! All you need to do is canvas.create_text(x, y, text='Hello World') where x and y are coordinates on the canvas. You can also add fg and/ or bg to set foreground and background colors, respectively. Mike -- http://mail.python.org/mailman/listinfo/python-list
Do other Python GUI toolkits require this?
From the introduction to PyObjC, the Python-Objective-C bridge on Mac OS X: "As described in Objective-C for PyObjC users the creation of Objective-C objects is a two-stage process. To initialize objects, first call a class method to allocate the memory (typically alloc), and then call an initializer (typically starts with init). Some classes have class methods which perform this behind the scenes, especially classes that create cached, immutable, or singleton instances." An example: myObject = NSObject.alloc().init() I know Tkinter doesn't require any manual memory allocation of this sort. Does wxPython, PyQt, PyGtk require anything like this when creating objects? -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Re: ??? POLICE AND CITY/UNIVERSITY OFFICIALS INCOMPETENCE LEADS TO 33 KILLED BY KOREAN-ALQAEDA TERRORIST ???
On 17 Apr 2007 06:56:05 -0700, [EMAIL PROTECTED] wrote: So many of the talking-head rants about VPI are idiotic. 1) bomb scares should have ak\lerted officials --blah blah blah The fact is that on a large university campus bomb threats are almost as common as exams! (there is a correlation!) They are quietly checked out without emptying dorms or CLASSROOMS. 2)VPI is not a "schoolhouse: and the students are NOT kids. The stiudents are adults. In fact, it is a violation of federal law for a university officials to discuss a student's performasnce with the parents! 3) Lock-down-- INSANE VPI is a small city.About 30,000 people, dozens of buildings ( some a mile apart) on 2600 acres (more than 3 times the size of NY's Central Park. It is not fenced or walled. The grounds and even the hallways of classroom buildings are coinsidered "public" Select your favorite city of 30,000 people. Consider: police are called to an apartment building to investigate reported gunshots. They find two dead and questioning leads to reports that the killer left "town". Do they lock down the entire town? Of course not --- it's not feasable --- Nor would they notify all residents of danger -- there was no reason to believe there was --- VPI of such a "city" --- and police already had a "person of interest" for the two killings --- a gun "enthusiast" ---the boyfriend of the dead girl. I have spent many years on university campuses. But, I have never had any association with VPI and ave never been there. -- http://mail.python.org/mailman/listinfo/python-list
Re: Do other Python GUI toolkits require this?
Kevin Walzer wrote: > From the introduction to PyObjC, the Python-Objective-C bridge on Mac > OS X: > > "As described in Objective-C for PyObjC users the creation of > Objective-C objects is a two-stage process. To initialize objects, first > call a class method to allocate the memory (typically alloc), and then > call an initializer (typically starts with init). Some classes have > class methods which perform this behind the scenes, especially classes > that create cached, immutable, or singleton instances." > > An example: > > myObject = NSObject.alloc().init() > > I know Tkinter doesn't require any manual memory allocation of this > sort. Does wxPython, PyQt, PyGtk require anything like this when > creating objects? > This appears more or less unique to Objective C. It looks that with PyObjC, you have to interact with the Objective C runtime to manage memory. This is not required, thankfully, with any other GUI tookits I've seen. I think the main difference is that PyObjC is not a GUI toolkit per se, but is simply a means to make the Objective C runtime (and hence Cocoa) available via a python layer. James -- http://mail.python.org/mailman/listinfo/python-list
comparison with None
>>> None >= 0 False >>> None <= 0 True Explanation appreciated. Thanks, Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list
Re: Compiling python from soruce vs RPM ?
howa wrote: > I have compiled python 2.5 from source > > i.e. > > ./configure > make > make install By default, configure uses /usr/local as the "prefix", not /usr... > but when i try to install another package require python, seems it > can't regonize python... > > e.g.. > > > /usr/bin/python is needed by xyz Consequently, by default, Python will be found at /usr/local/bin/ python, not /usr/bin/python as you seem to require. Try building from source again: make clean # probably needed if rebuilding in the same place ./configure --prefix=/usr make make install Since /usr/bin/python isn't found, it doesn't look like there's an existing version of Python that you might overwrite, but it's important to verify such things when installing software. That's where your distribution's packages have an advantage, and it's arguably a better idea to install such packages instead, possibly building them from source if no binary packages exist yet for Python 2.5. (If no source packages exist, you have a bit more work to do.) Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Threads -
In article <[EMAIL PROTECTED]>, S.Mohideen <[EMAIL PROTECTED]> wrote: > >Can you please suggest a technique in Python where we can spawn few number >of worker threads and later map them to a function/s to execute individual >Jobs. You can see an example for a web spider on my Python website. -- Aahz ([EMAIL PROTECTED]) <*> http://www.pythoncraft.com/ Help a hearing-impaired person: http://rule6.info/hearing.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Do other Python GUI toolkits require this?
James Stroud wrote: > This appears more or less unique to Objective C. It looks that with > PyObjC, you have to interact with the Objective C runtime to manage > memory. This is not required, thankfully, with any other GUI tookits > I've seen. > > I think the main difference is that PyObjC is not a GUI toolkit per se, > but is simply a means to make the Objective C runtime (and hence Cocoa) > available via a python layer. > > James That's kind of what I thought. Memory management? In Python? *shudder* I'm a Mac-only developer, and I keep telling myself I should drink the Mac-only Kool-aid of PyObjC. But Tk is burned into my brain, and anything else looks and feels weird to me. Tk is so flexible that it's fairly easy to tweak it to look Mac-like, and it's simpler to do that than learn a new tookit. -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
"Alan G Isaac" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] | >>> None >= 0 | False | >>> None <= 0 | True | | Explanation appreciated. Should be in the reference manual section on comparisons. -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
Alan G Isaac wrote: > >>> None >= 0 > False > >>> None <= 0 > True > > Explanation appreciated. > > Thanks, > Alan Isaac > I've read and found that 'None' comparisons is not always a good idea. Better to: from types import NoneType x = None if type( x ) == NoneType: # true < code > else: # false; do something else. < more code > Steven Howe -- http://mail.python.org/mailman/listinfo/python-list
Re: pycurl problem
En Wed, 18 Apr 2007 11:48:06 -0300, pabloski <[EMAIL PROTECTED]> escribió: > I noted that if I define c.proxy and c.url as costants e.g. c.url = > "http://www.google.com/search?blah blah" and c.proxy = > "127.0.0.1:8080" it works > > However if I define them as described before pycurl raises the TypeError Python -with its long "batteries included" tradition- comes with two powerful tools for diagnosing problems: print and repr print "c.url", type(c.url), repr(c.url) print "c.proxy", type(c.proxy), repr(c.proxy) -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
On Apr 18, 5:19 pm, Steven Howe <[EMAIL PROTECTED]> wrote: > Alan G Isaac wrote: > > >>> None >= 0 > > False > > >>> None <= 0 > > True > > > Explanation appreciated. > > > Thanks, > > Alan Isaac > > I've read and found that 'None' comparisons is not always a good idea. > Better to: > from types import NoneType > > x = None > if type( x ) == NoneType: > # true > < code > > else: > # false; do something else. > < more code > > > Steven Howe None is a singleton - there is but one None and no other. The only comparisons that make sense with None are "is" or "is not". type(x) == NoneType is unnecessary, x is None is sufficient. >>> x = None >>> x is None True >>> y = None >>> x is y True >>> z = object() >>> z is None False >>> z is not None True >>> x is not None False >>> y is not None False -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
On Apr 18, 3:19 pm, Steven Howe <[EMAIL PROTECTED]> wrote: > I've read and found that 'None' comparisons is not always a good idea. > Better to: > from types import NoneType > > x = None > if type( x ) == NoneType: > # true > < code > > else: > # false; do something else. > < more code > > > Steven Howe Is that any better than this? if x is None: # do something else: # do something else -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
[EMAIL PROTECTED] wrote: > > If Python doesn't declare an official Gui system, then it'll be > fragmented, inconsistent, and unsupportable. I don't agree. GUI frameworks are somewhat like Web frameworks, object- relational mappers, and all the other things that work in different ways, work better on various systems, appeal to different tastes and so on. There are a number of cross-platform GUI frameworks which claim some kind of native look and feel on every platform, but declaring one the winner is not going to convince the satisfied users of the others of its superiority. Meanwhile, some people don't care about more than one platform and will quite happily target their chosen platform intentionally, and it's worth remembering that anyone developing for, say, a Free desktop environment will treat such an environment as the means to provide "worthwhile" portability - targeting the Windows API, for example, becomes an irrelevance. There are a few technologies with an "official" GUI framework or APIs, with Java being one of the more notorious at delivering either a fairly weak set of features performing inconsistently across platforms (AWT) or a more ambitious set of features wrapped up in a baroque architecture, performing poorly and still managing to look alien on most platforms (Swing). And before anyone mentions Delphi/Kylix, a recent experience trying out a Kylix-based application on a Red Hat system provided enough of an explanation as to why Borland dropped that particular product. As I've said often enough on the topic of Web frameworks, picking winners gives only a temporary victory to those who want to avoid making decisions. It's better to provide people with a means of making an informed choice, and it should be realised that people will approach this choice from rather different angles. It isn't always going to be, "I want to write a Python application - what GUI should I use?" Instead, it may be, "I want to write a KDE application - can I do so in Python and what are my options?" Pretending that the answer is always the same will frequently drive people to other technologies, not attract them to a technology selling a vision that turns out to be a mirage. Paul -- http://mail.python.org/mailman/listinfo/python-list
using the sysloghandler class
Hello all,
I have a small script which attempts to write to the user.log syslog
import logging, logging.handlers
logger = logging.getLogger('bender')
handler = logging.handlers.SysLogHandler(('localhost',
logging.handlers.SYSLOG_UDP_PORT),
logging.handlers.SysLogHandler.LOG_USER)
formatter = logging.Formatter('%(filename)s: %(levelname)s: %(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)
logger.error('what')
but no log entries show up, however if I use the syslog module as such:
>>> import syslog
>>> syslog.syslog('testing syslog')
everything works fine. I am not sure what I am doing wrong. Any help
would be appreciated.
Thanks,
Nick
--
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Re: What makes an iterator an iterator?
On Apr 18, 8:50 am, [EMAIL PROTECTED] (Alex Martelli) wrote: > The special methods need to be on the type -- having attributes of those > names on the instance doesn't help (applies to all special methods in > the normal, aka newstyle, object model; legacy, aka classic, classes, > work by slightly different and not entirely self-consistent semantics). > > Alex Can you explain some of the details of why this code fails: --- class Parrot(object): def __iter__(self): return self def __init__(self): self.next = self.next().next def next(self): for word in "Norwegian Blue's have beautiful plumage!".split(): yield word P = Parrot() for word in P: print word -- It causes an infinite loop that just prints out the iterator object returned when you call the generator function. If I try this: - class Parrot(object): def __iter__(self): return self def __init__(self): print self.next() print self.next().next #self.next = self.next().next def next(self): for word in "Norwegian Blue's have beautiful plumage!".split(): yield word P = Parrot() ''' for word in P: print word ''' -- the output is: Based on that output, self.next() is the iterator object that wraps the generator function, and it has a next() method. If 'i' is the iterator object, then the statement: self.next = self.next().next is equivalent to: self.next = i.next and therefor calling P.next() is equivalent to i.next(), which appears to be exactly what you want. As I understand it, this is how the for loop works: 1) The for loop causes the built in, global iter() function to be called with P as an argument: iter(P). That calls P's __iter__() method, which just returns P. 2) The for loop repeatedly calls next() on whatever object is returned by 1), so that results in calls to P.next(). 3) P.next() is equivalent to i.next() I don't understand at which step does the code fail. -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
[EMAIL PROTECTED] wrote: > On Apr 18, 3:19 pm, Steven Howe <[EMAIL PROTECTED]> wrote: >> I've read and found that 'None' comparisons is not always a good idea. >> Better to: >> from types import NoneType >> >> x = None >> if type( x ) == NoneType: >> # true >> < code > >> else: >> # false; do something else. >> < more code > >> >> Steven Howe > > Is that any better than this? > > if x is None: > # do something > else: > # do something else To the contrary, it's not as good. "if x is None" is much clearer, and probably faster. -- Michael Hoffman -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
Alan G Isaac wrote: > >>> None >= 0 > False > >>> None <= 0 > True > > Explanation appreciated. > > Thanks, > Alan Isaac > So that we can sort lists of objects, even when the objects of are different types, Python guarantees to supply a unique and consistent ordering of any two objects. The definition of Python does not specify what that ordering is -- that's implementation dependent -- but any two objects of any two types *do* have an ordering and that ordering will always be the same. So in your implementation None is less than 0 (and probably less than any integer). Given that, your two observations above are consistent. Gary Herron -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
[EMAIL PROTECTED] wrote: > On Apr 18, 3:19 pm, Steven Howe <[EMAIL PROTECTED]> wrote: > >> I've read and found that 'None' comparisons is not always a good idea. >> Better to: >> from types import NoneType >> >> x = None >> if type( x ) == NoneType: >> # true >> < code > >> else: >> # false; do something else. >> < more code > >> >> Steven Howe >> > > Is that any better than this? > > if x is None: > # do something > else: > # do something else > No. using if x is None: is the recommended way. Gary Herron -- http://mail.python.org/mailman/listinfo/python-list
python-list@python.org
[EMAIL PROTECTED] wrote: > Try it with > > def test(): > L = 'a', 1, 2, 'a' > it1, it2 = xsplitter(L, lambda x: x == 'a') > print it1.next() > print it2.next() > print it1.next() > print it2.next() > > > The last print statement raises StopIteration... > We, however, expected each iterator to contain > two elements (one yielding 'a' then 'a', and > the other yielding 1 then 2). Ouch! I never understood much about generators anyway. A. -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
Steven Howe wrote: > Alan G Isaac wrote: >> >>> None >= 0 >> False >> >>> None <= 0 >> True >> >> Explanation appreciated. >> >> Thanks, >> Alan Isaac >> > I've read and found that 'None' comparisons is not always a good idea. > Better to: > from types import NoneType > > x = None > if type( x ) == NoneType: > # true > < code > > else: > # false; do something else. > < more code > The recommended idiom is to test for "x is None". -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie: import
On Apr 18, 10:34 am, [EMAIL PROTECTED] wrote:
> I thought import used relative paths from either the python executable
> or the script being executed. I have a script pulling in code from an
> arbitrary directory. How is this happening?
>
> It's a RHEL 4 environment by the way. I couldn't find any relevant
> environment variables.
>
> Thanks from a newbie for any insight.
>From the online python tutorial here:
http://docs.python.org/tut/
There is this:
--
6.1.1 The Module Search Path
When a module named spam is imported, the interpreter searches for a
file named spam.py in the current directory, and then in the list of
directories specified by the environment variable PYTHONPATH. This has
the same syntax as the shell variable PATH, that is, a list of
directory names. When PYTHONPATH is not set, or when the file is not
found there, the search continues in an installation-dependent default
path; on Unix, this is usually .:/usr/local/lib/python.
Actually, modules are searched in the list of directories given by the
variable sys.path which is initialized from the directory containing
the input script (or the current directory), PYTHONPATH and the
installation-dependent default. This allows Python programs that know
what they're doing to modify or replace the module search path. Note
that because the directory containing the script being run is on the
search path, it is important that the script not have the same name as
a standard module, or Python will attempt to load the script as a
module when that module is imported. This will generally be an error.
See section 6.2, ``Standard Modules,'' for more information.
--
You can use the following trick to import one of your own modules when
your module
isn't in the current directory(and doesn't happen to be in PYTHONPATH
or the default path):
import sys
sys.path.append("relative path or absolute path to dir with the
module") # temporarily changes sys.path
import mymodule
--
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Third party script debugging on remote server ...
Right. I've got a really, really annoying/difficult/time consuming problem with my development environment. I'm using django to build a web app with paypal integration. My server is hosted remotely, and it is receiving IPN (payment notifications) POST requests from Paypal. I've checked on google and irc and this is my last shot at solving this before I go mad ... :-( The problem is that I can't debug those POST requests. Browser debugging is out of the question obviously cause I'm not at the computer, ( and it doesn't have X ). I've tried cgitb but that doesn't seem to work at all ... import cgitb; cgitb.enable(display=0,logdir='/tmp/',format='plain') import cgitb; cgitb.enable() ... neither of those commands have any effect. Although I do log other parts of the script to /tmp, so I know that it's reachable... mod_python absolutely refuses to error_log to the apache error_log. I have restarted it and it still won't flush whatever error buffer it may ( or may not ) have stored. I can re-constitute the requests in my browser using a GET request. But frankly, that's kinda messy - there are lots of paypal IPN combinations and I may have to integrate other applications with paypal. So ideally speaking I'm looking for a proper debugging environment for this kind of thing ... Basically, I either want mod_python to start error_logging properly, or I want some type of working traceback environment to be available. Help ! Server version: Apache/2.0.52 Server built: Aug 13 2006 03:29:43 CentOS4.x: (RedHat Clone) mod_python.i386 3.1.3-5.1 installed # httpd.conf ServerName mydomain.biz ServerAlias www.mydomain.biz SetHandler mod_python PythonPath "['/home/babo/django'] + sys.path" PythonHandler django.core.handlers.modpython SetEnv DJANGO_SETTINGS_MODULE mydomain.settings SetHandler None Options None My python.conf: ( seems pretty normal ) # # Mod_python is a module that embeds the Python language interpreter # within the server, allowing Apache handlers to be written in Python. # LoadModule python_module modules/mod_python.so # Override type-map handler for /var/www/manual SetHandler default-handler # This will cause files beneath /var/www/html with the extension .spam # to be handled by the Python script /var/www/html/eggs.py # # #AddHandler python-program .spam #PythonHandler eggs # # This will cause all requests to the /python heirachy of your # webserver to be handled by the python script /path/to/myhandler.py # # #SetHandler python-program #PythonPath "sys.path + ['/path/to']" #PythonHandler myhandler # # This will cause all requests to the /python heirachy of your # webserver to be handled by mod_python's Publisher handler # (see http://localhost/manual/mod/mod_python/hand-pub.html) # # This will cause the output of all requests to files beneath # /var/www/html with the extension .flt to be filtered through # the Python script /var/www/html/filter.py # # #PythonOutputFilter filter MYFILTER #AddOutputFilter MYFILTER .flt # -- http://mail.python.org/mailman/listinfo/python-list
Beginner: Formatting text output (PyQt4)
Hello again, I don't blame anyone for not answering my last post, since I obviously hadn't spent much time researching, but I've come a little ways and have another question. How can I better format text output to a QTextEdit object? I'm inserting 5 columns into each row. When I write the info to a file, it looks like the following: 42: 115 26: 114 35: 112 19: 108 16: 107 45: 107 40: 106 5: 105 41: 104 2: 103 9: 102 48: 102 15: 101 22: 101 27: 101 39: 101 43: 101 10: 100 6: 99 34: 99 32: 98 49: 98 20: 97 30: 97 8: 96 17: 96 38: 96 12: 95 14: 95 37: 95 4: 94 13: 94 44: 94 36: 93 3: 92 24: 92 28: 92 31: 91 29: 89 7: 88 1: 87 18: 85 46: 85 33: 84 11: 83 23: 83 47: 82 25: 80 21: 79 50: 56 52: 39 51: 38 53: 36 54: 25 55: 18 When I write the contents of the file to my TextEdit object it comes out uneven, something like this: 42: 11526: 11435: 11219: 10816: 107 45: 10740: 1065: 10541: 104 2: 103 9: 10248: 10215: 10122: 10127: 101 39: 10143: 10110: 1006: 9934: 99 32: 9849: 9820: 9730: 978: 96 17: 9638: 9612: 9514: 9537: 95 4: 9413: 9444: 9436: 933: 92 24: 9228: 9231: 9129: 897: 88 1: 8718: 8546: 8533: 8411: 83 23: 8347: 8225: 8021: 7950: 56 52: 3951: 3853: 3654: 2555: 18 What seems to be happening is that the font that pyqt is using is not fixed width, so I did this: qTxtFormat = QTextCharFormat() qTxtFormat.setFontFixedPitch(True) ui.textEdit.setCurrentCharFormat(qTxtFormat) Also, I tried using the pyqt formatting such as the following: qStr = QtCore.QString( QtCore.QString( str(tL2[i][0]) ).rightJustified(2) + ':' + QtCore.QString( str(tL2[i][1]) ).rightJustified(4) ) This still gives me uneven columns. Any suggestions? Thanks, Glen -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing Python on NT
En Wed, 18 Apr 2007 18:09:03 -0300, Schwartz, Hillary <[EMAIL PROTECTED]> escribió: ? -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Third party script debugging on remote server ...
After calling whatever it is that is writing to standard output/error, do: import sys sys.stdout.flush() sys.stderr.flush() This should cause any buffered data to be immediately flushed to the main Apache error log, ie., don't look in any virtual host logs, check the main one. Graham On Apr 19, 9:15 am, dbee <[EMAIL PROTECTED]> wrote: > Right. I've got a really, really annoying/difficult/time consuming > problem with my development environment. I'm using django to build a > web app with paypal integration. My server is hosted remotely, and it > is receiving IPN (payment notifications) POST requests from Paypal. > I've checked on google and irc and this is my last shot at solving > this before I go mad ... :-( > > The problem is that I can't debug those POST requests. Browser > debugging is out of the question obviously cause I'm not at the > computer, ( and it doesn't have X ). > > I've tried cgitb but that doesn't seem to work at all ... > > import cgitb; cgitb.enable(display=0,logdir='/tmp/',format='plain') > import cgitb; cgitb.enable() > > ... neither of those commands have any effect. Although I do log other > parts of the script to /tmp, so I know that it's reachable... > > mod_pythonabsolutely refuses to error_log to the apache error_log. I > have restarted it and it still won't flush whatever error buffer it > may ( or may not ) have stored. > > I can re-constitute the requests in my browser using a GET request. > But frankly, that's kinda messy - there are lots of paypal IPN > combinations and I may have to integrate other applications with > paypal. So ideally speaking I'm looking for a proper debugging > environment for this kind of thing ... > > Basically, I either wantmod_pythonto start error_logging properly, > or I want some type of working traceback environment to be available. > Help ! > > Server version: Apache/2.0.52 > Server built: Aug 13 2006 03:29:43 > CentOS4.x: (RedHat Clone)mod_python.i386 3.1.3-5.1 > installed > > # httpd.conf > > > > ServerName mydomain.biz > ServerAliaswww.mydomain.biz > SetHandlermod_python > PythonPath "['/home/babo/django'] + sys.path" > PythonHandler django.core.handlers.modpython > SetEnv DJANGO_SETTINGS_MODULE mydomain.settings > > >SetHandler None >Options None > > > > > My python.conf: ( seems pretty normal ) > > # > #Mod_pythonis a module that embeds the Python language interpreter > # within the server, allowing Apache handlers to be written in Python. > # > > LoadModule python_module modules/mod_python.so > > # Override type-map handler for /var/www/manual > > > SetHandler default-handler > > > > # This will cause files beneath /var/www/html with the extension .spam > # to be handled by the Python script /var/www/html/eggs.py > # > # > #AddHandler python-program .spam > #PythonHandler eggs > # > > # This will cause all requests to the /python heirachy of your > # webserver to be handled by the python script /path/to/myhandler.py > # > # > #SetHandler python-program > #PythonPath "sys.path + ['/path/to']" > #PythonHandler myhandler > # > > # This will cause all requests to the /python heirachy of your > # webserver to be handled bymod_python'sPublisher handler > # (seehttp://localhost/manual/mod/mod_python/hand-pub.html) > # > # This will cause the output of all requests to files beneath > # /var/www/html with the extension .flt to be filtered through > # the Python script /var/www/html/filter.py > # > # > #PythonOutputFilter filter MYFILTER > #AddOutputFilter MYFILTER .flt > # -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie: import
Here's an example where you are trying to import a function in one of
your .py files--when that .py file is not in the current directory:
import sys
sys.path.append("/Users/me/2testing/dir1/")
#directory that contains the file
import test1 #name of file without .py extension
test1.greet()
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Re: Python COM iterator
Carsten Haese wrote:
> On Tue, 2007-04-17 at 16:54 -0500, Larry Bates wrote:
>> Does anyone know if there is a way to make a Python COM object
>> act like a proper iterator in VB/Delphi?
>
> I don't use COM, VB, or Delphi, but Google turned up these two
> references:
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcn7/html/vaconUsingForEach.asp
> http://17slon.com/blogs/gabr/2007/03/fun-with-enumerators-part-1.html
>
> Judging from those links, an object is iterable in VB and Delphi (or as
> they call it, it is enumerable) if it exposes a GetEnumerator method
> that returns an enumerator. The enumerator in turn needs to expose a
> MoveNext method and a Current property.
>
> Assuming that the Enumerable and the Enumerator are allowed to be the
> same object, you'll probably need code that looks something like this:
>
> class foo:
> _public_methods_=['GetEnumerator','MoveNext']
> # You'll need to figure out how to expose "self.Current"
>
> def __init__(self):
> self.numbers=[1,2,3,4,5,6,7,8]
> self.Current = None
>
> def MoveNext(self):
> try:
> self.Current = self.numbers.pop(0)
> return True
> except IndexError:
> return False
>
> def GetEnumerator(self):
> return self
>
> Good luck,
>
> Carsten.
>
>
I looked over the links and what you have proposed seems to make sense, but
I can't make it work. I have the following class defined and registered.
class foo:
_public_methods_=['GetEnumerator','MoveNext']
_public_attrs_=['Current']
_reg_clsid_='{FC2A0E7B-E428-4414-B1C4-60373BB12102}'
_reg_progid_="Syscon.foo"
def __init__(self):
self.numbers=[1,2,3,4,5,6,7,8]
self.Current = None
def MoveNext(self):
try:
self.Current = self.numbers.pop(0)
rtnval=True
except IndexError:
self.Current=None
rtnval=False
def GetEnumerator(self):
return self
Then I do:
>>> import win32com.client
>>> typelib='Syscon.foo'
>>> F=win32com.client.Dispatch(typelib)
>>> for x in F:
... print x
...
Traceback (most recent call last):
File "", line 1, in
File "C:\Python25\lib\site-packages\win32com\client\dynamic.py", line 228, in
__getitem__
raise TypeError, "This object does not support enumeration"
TypeError: This object does not support enumeration
>>>
but this works fine:
>>> F.MoveNext()
>>> F.Current
1
>>> F.MoveNext()
>>> F.Current
2
>>>
I'm stumped.
-Larry
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Re: converting currency using locals
En Wed, 18 Apr 2007 15:08:24 -0300, Grzegorz Ślusarek <[EMAIL PROTECTED]>
escribió:
> Hi all. I have situation that I have value that holds price and I must
> show
> this price using national specification(e.g. thousands_sep). Any idea how
> this can be done under python 2.4.4? I saw that function format from
> module
> locals can format value with national specification, but this could be
> done
> only in python 2.5. Any solution for 2.4?
> example what I want achieve:
> value 24500.50
> Hungarian Price 24 500.50
> Romaniam Price 24.500.50
> Thanks for any help
> Gregor
Python 2.4.4 can handle thousands separator and grouping but not
*specific* settings for monetary values. That is, when
thousands_sep==mon_thousands_sep and grouping==mon_grouping and
decimal_point==mon_decimal_point the following code works also for
monetary values:
(I've checked the 'hu' and 'ro' locales on my system and both have that
property)
Python 2.4.4 (#71, Oct 18 2006, 08:34:43) [MSC v.1310 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
py> import locale
py> locale.setlocale(locale.LC_ALL, '')
'Spanish_Argentina.1252'
py> help(locale.format)
Help on function format in module locale:
format(f, val, grouping=0)
Formats a value in the same way that the % formatting would use,
but takes the current locale into account.
Grouping is applied if the third parameter is true.
py> locale.format('%.2f', 1234567.1234, True)
'1.234.567,12'
--
Gabriel Genellina
--
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Re: Future Python Gui?
> On Windows, the easiest way to install Tile is to grab it from
> ActiveState's Tcl distribution
> (http://www.activestate.com/products/activetcl/) and then place it with
> the Tcl/Tk bits that come with Python. The Tcl/Tk build for Windows that
> python.org provides doesn't ship with Tile. You'll also have to install
> the Tile wrapper at the site I referenced earlier in your site-packages
> directory.
For posterity's sake, here's what I did...
- install python http://www.python.org/download/
(use the Windows MSI install package)
- go to http://bruno.thoorens.free.fr/ and do the download
- instructions say to copy "tty.py" to "Tkinter" folder, but that
doesn't exist
- copy instead to C:\Python25\Lib
- copy folders as directed (to C:\Python25\Tcl)
This should also work with the ActivePython download at
http://www.activestate.com/products/activepython/ .
Within your program, you need:
# Import "Tile" theming engine
tkroot.tk.call('package', 'require', 'tile')
tkroot.tk.call('namespace', 'import', '-force', 'ttk::*')
tkroot.tk.call('tile::setTheme', 'xpnative')
after your call to "tkroot = Tk()" (or "tkroot = Tkinter.Tk()" if you
just "import Tkinter").
The frustrating part is that the main reason I wanted this is because
it says it wraps a "Notebook" widget. If it does, I can't find it!
-- Brian
--
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Re: Future Python Gui?
> "Tile" has already been mentioned in this thread, and I know
> there'll be at least one more follow-up on the subject. Tile
> includes a ("native"!) notebook, as well as a combobox, tree-
> view, ... http://wiki.tcl.tk/11075>.
It seems that Tile does include a "notebook" widget but it's pure Tcl
code and so isn't available via the Python wrapper.
-- Brian
--
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Re: Future Python Gui?
> As I've said often enough on the topic of Web frameworks, picking > winners gives only a temporary victory to those who want to avoid > making decisions. It's better to provide people with a means of making > an informed choice, and it should be realised that people will > approach this choice from rather different angles. It isn't always > going to be, "I want to write a Python application - what GUI should I > use?" Instead, it may be, "I want to write a KDE application - can I > do so in Python and what are my options?" Pretending that the answer > is always the same will frequently drive people to other technologies, > not attract them to a technology selling a vision that turns out to be > a mirage. This is getting off-topic, I guess, so I'll only comment once because I don't want to get wrapped up in a flame war. This is the argument used by people who think that having both KDE and GNOME is a good thing because it promotes competition, etc. Personally, I believe it's a bad thing because it duplicates effort and delivers an inconsistent look & feel. Developers are forced to choose a framework, not knowing if it will go away in favor of another choice and rendering their own hard work obsolete. I don't want my work dependent upon the framework. I'd rather have less good if it meant longer-term stability and greater consistency. But that's just me. -- Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
[EMAIL PROTECTED] wrote:
>> "Tile" has already been mentioned in this thread, and I know
>> there'll be at least one more follow-up on the subject. Tile
>> includes a ("native"!) notebook, as well as a combobox, tree-
>> view, ... http://wiki.tcl.tk/11075>.
>
> It seems that Tile does include a "notebook" widget but it's pure Tcl
> code and so isn't available via the Python wrapper.
>
> -- Brian
>
That's not correct. When the Tkinter wiki is back up, see the page I
referred to.
--
Kevin Walzer
Code by Kevin
http://www.codebykevin.com
--
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Re: Future Python Gui?
[EMAIL PROTECTED] wrote:
>> On Windows, the easiest way to install Tile is to grab it from
>> ActiveState's Tcl distribution
>> (http://www.activestate.com/products/activetcl/) and then place it with
>> the Tcl/Tk bits that come with Python. The Tcl/Tk build for Windows that
>> python.org provides doesn't ship with Tile. You'll also have to install
>> the Tile wrapper at the site I referenced earlier in your site-packages
>> directory.
>
> For posterity's sake, here's what I did...
>
> - install python http://www.python.org/download/
> (use the Windows MSI install package)
> - go to http://bruno.thoorens.free.fr/ and do the download
> - instructions say to copy "tty.py" to "Tkinter" folder, but that
> doesn't exist
> - copy instead to C:\Python25\Lib
> - copy folders as directed (to C:\Python25\Tcl)
>
> This should also work with the ActivePython download at
> http://www.activestate.com/products/activepython/ .
>
> Within your program, you need:
>
> # Import "Tile" theming engine
> tkroot.tk.call('package', 'require', 'tile')
> tkroot.tk.call('namespace', 'import', '-force', 'ttk::*')
> tkroot.tk.call('tile::setTheme', 'xpnative')
>
> after your call to "tkroot = Tk()" (or "tkroot = Tkinter.Tk()" if you
> just "import Tkinter").
>
> The frustrating part is that the main reason I wanted this is because
> it says it wraps a "Notebook" widget. If it does, I can't find it!
>
>
> -- Brian
>
The wrapper I maintain works differently, and includes the notebook widget.
--
Kevin Walzer
Code by Kevin
http://www.codebykevin.com
--
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Re: Future Python Gui?
Since the Tkinter wiki is still down, here is the Tile wrapper I maintain:
###
November 2006: Posted by Kevin Walzer, [EMAIL PROTECTED] Based on
Tile wrapper by Martin Franklin. This version updates the wrapper to
reflect changes in Tile commands, and adds support for Tile-based frames
(ttk::frame). Freely reusable.
import Tkinter
from Tkconstants import *
class Style:
def default(self, style, **kw):
"""Sets the default value of the specified option(s) in style"""
pass
def map_style(self, **kw):
"""Sets dynamic values of the specified option(s) in style. See
"STATE MAPS", below."""
pass
def layout(self, style, layoutSpec):
"""Define the widget layout for style style. See "LAYOUTS" below
for the format of layoutSpec. If layoutSpec is omitted, return the
layout specification for style style. """
pass
def element_create(self, name, type, *args):
"""Creates a new element in the current theme of type type. The
only built-in element type is image (see image(n)), although
themes may define other element types (see
Ttk_RegisterElementFactory).
"""
pass
def element_names(self):
"""Returns a list of all elements defined in the current theme. """
pass
def theme_create(self, name, parent=None, basedon=None):
"""Creates a new theme. It is an error if themeName already
exists.
If -parent is specified, the new theme will inherit styles,
elements,
and layouts from the parent theme basedon. If -settings is
present,
script is evaluated in the context of the new theme as per
style theme
settings.
"""
pass
def theme_settings(self, name, script):
"""Temporarily sets the current theme to themeName, evaluate
script,
then restore the previous theme. Typically script simply
defines styles
and elements, though arbitrary Tcl code may appear.
"""
pass
def theme_names(self):
"""Returns a list of the available themes. """
return self.tk.call("style", "theme", "names")
def theme_use(self, theme):
"""Sets the current theme to themeName, and refreshes all
widgets."""
return self.tk.call("style", "theme", "use", theme)
class Widget(Tkinter.Widget, Style):
def __init__(self, master, widgetName=None, cnf={}, kw={}, extra=()):
if not widgetName:
## why you would ever want to create a Tile Widget is
behond me!
widgetName="ttk::widget"
Tkinter.Widget.__init__(self, master, widgetName, cnf, kw)
def instate(self, spec=None, script=None):
"""Test the widget's state. If script is not specified, returns 1
if the widget state matches statespec and 0 otherwise. If script
is specified, equivalent to if {[pathName instate stateSpec]}
script.
"""
return self.tk.call(self._w, "instate", spec, script)
def state(self, spec=None):
"""Modify or inquire widget state. If stateSpec is present, sets
the widget state: for each flag in stateSpec, sets the
corresponding
flag or clears it if prefixed by an exclamation point. Returns
a new
state spec indicating which flags were changed: ''set changes
[pathName state spec] ; pathName state $changes'' will restore
pathName to the original state. If stateSpec is not specified,
returns a list of the currently-enabled state flags.
"""
return self.tk.call(self._w, "state", spec)
class Button(Widget, Tkinter.Button):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::button", cnf, kw)
###add frame support here--KWs
class Frame(Widget, Tkinter.Frame):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::frame", cnf, kw)
class Checkbutton(Widget, Tkinter.Checkbutton):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::checkbutton", cnf, kw)
class Combobox(Widget, Tkinter.Entry):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::combobox", cnf, kw)
def current(self, index=None):
"""If index is supplied, sets the combobox value to the element
at position newIndex in the list of -values. Otherwise, returns
the index of the current value in the list of -values or -1 if
the current value does not appear in the list.
"""
return self.tk.call(self._w, "current", index)
class Entry(Widget, Tkinter.Entry):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::entry", cnf, kw)
def validate(self):
"""Force revalidation, independent of the conditions specified by
the
Spawn/Exec with asterisk in argument
The spawn* and exec* functions appear to escape asterisks, I'm
guessing all shell characters too, before the spawn/exec'ed process
sees them. Is there a way around this?
Not sure if this is a bug or a "feature".
user$ touch test.txt
user$ ls -l *
-rw-r--r-- 1 user user 0 Apr 18 18:30 test.txt
user$ ls -l \*
ls: *: No such file or directory
user$ python
Python 2.3.5 (#1, Aug 12 2006, 00:08:11)
[GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.system("ls -l *")
-rw-r--r-- 1 user user 0 Apr 18 18:30 test.txt
0
>>> os.spawnvp(os.P_WAIT, "ls", ("ls", "-l", "*"))
ls: *: No such file or directory
1
--
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Re: Future Python Gui?
This should be saved as "Tile.py." Sorry.
###
November 2006: Posted by Kevin Walzer, [EMAIL PROTECTED] Based on
Tile wrapper by Martin Franklin. This version updates the wrapper to
reflect changes in Tile commands, and adds support for Tile-based frames
(ttk::frame). Freely reusable.
import Tkinter
from Tkconstants import *
class Style:
def default(self, style, **kw):
"""Sets the default value of the specified option(s) in style"""
pass
def map_style(self, **kw):
"""Sets dynamic values of the specified option(s) in style. See
"STATE MAPS", below."""
pass
def layout(self, style, layoutSpec):
"""Define the widget layout for style style. See "LAYOUTS" below
for the format of layoutSpec. If layoutSpec is omitted, return the
layout specification for style style. """
pass
def element_create(self, name, type, *args):
"""Creates a new element in the current theme of type type. The
only built-in element type is image (see image(n)), although
themes may define other element types (see
Ttk_RegisterElementFactory).
"""
pass
def element_names(self):
"""Returns a list of all elements defined in the current theme. """
pass
def theme_create(self, name, parent=None, basedon=None):
"""Creates a new theme. It is an error if themeName already
exists.
If -parent is specified, the new theme will inherit styles,
elements,
and layouts from the parent theme basedon. If -settings is
present,
script is evaluated in the context of the new theme as per
style theme
settings.
"""
pass
def theme_settings(self, name, script):
"""Temporarily sets the current theme to themeName, evaluate
script,
then restore the previous theme. Typically script simply
defines styles
and elements, though arbitrary Tcl code may appear.
"""
pass
def theme_names(self):
"""Returns a list of the available themes. """
return self.tk.call("style", "theme", "names")
def theme_use(self, theme):
"""Sets the current theme to themeName, and refreshes all
widgets."""
return self.tk.call("style", "theme", "use", theme)
class Widget(Tkinter.Widget, Style):
def __init__(self, master, widgetName=None, cnf={}, kw={}, extra=()):
if not widgetName:
## why you would ever want to create a Tile Widget is
behond me!
widgetName="ttk::widget"
Tkinter.Widget.__init__(self, master, widgetName, cnf, kw)
def instate(self, spec=None, script=None):
"""Test the widget's state. If script is not specified, returns 1
if the widget state matches statespec and 0 otherwise. If script
is specified, equivalent to if {[pathName instate stateSpec]}
script.
"""
return self.tk.call(self._w, "instate", spec, script)
def state(self, spec=None):
"""Modify or inquire widget state. If stateSpec is present, sets
the widget state: for each flag in stateSpec, sets the
corresponding
flag or clears it if prefixed by an exclamation point. Returns
a new
state spec indicating which flags were changed: ''set changes
[pathName state spec] ; pathName state $changes'' will restore
pathName to the original state. If stateSpec is not specified,
returns a list of the currently-enabled state flags.
"""
return self.tk.call(self._w, "state", spec)
class Button(Widget, Tkinter.Button):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::button", cnf, kw)
###add frame support here--KWs
class Frame(Widget, Tkinter.Frame):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::frame", cnf, kw)
class Checkbutton(Widget, Tkinter.Checkbutton):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::checkbutton", cnf, kw)
class Combobox(Widget, Tkinter.Entry):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::combobox", cnf, kw)
def current(self, index=None):
"""If index is supplied, sets the combobox value to the element
at position newIndex in the list of -values. Otherwise, returns
the index of the current value in the list of -values or -1 if
the current value does not appear in the list.
"""
return self.tk.call(self._w, "current", index)
class Entry(Widget, Tkinter.Entry):
def __init__(self, master=None, cnf={}, **kw):
Widget.__init__(self, master, "ttk::entry", cnf, kw)
def validate(self):
"""Force revalidation, independent of the conditions specified by
the -validate option. Returns 0 if t
Using the Python interpreter
Instead of starting IDLE as I normally do, I started the Python interpreter and tried to run a program. I got a Python prompt (>>>), and then tried unsuccessfully to run a Python script named Script1.py that runs perfectly well in IDLE. Here's what I did: >>>Script1.py Traceback (most recent call last): File "", line 1, in ? NameError: name Script1 is not defined >>>python Script1.py File "", line 1 python Script1.py SyntaxError: invalid syntax I can load it (and have it execute) by typing >>>import Script1 0 1 2 3 4 and if I edit it, I can then execute it by reloading it >>>import Script1 0 1 2 3 4 But this seems contrived - is there no way to repeatedly run Script1 from the interpreter without reloading it? Thomas Philips -- http://mail.python.org/mailman/listinfo/python-list
Re: Third party script debugging on remote server ...
On Apr 19, 12:31 am, Graham Dumpleton <[EMAIL PROTECTED]>
wrote:
> After calling whatever it is that is writing to standard output/error,
> do:
>
> import sys
> sys.stdout.flush()
> sys.stderr.flush()
>
> This should cause any buffered data to be immediately flushed to the
> main Apache error log, ie., don't look in any virtual host logs, check
> the main one.
>
> Graham
>
> On Apr 19, 9:15 am, dbee <[EMAIL PROTECTED]> wrote:
>
> > Right. I've got a really, really annoying/difficult/time consuming
> > problem with my development environment. I'm using django to build a
> > web app with paypal integration. My server is hosted remotely, and it
> > is receiving IPN (payment notifications) POST requests from Paypal.
> > I've checked on google and irc and this is my last shot at solving
> > this before I go mad ... :-(
>
> > The problem is that I can't debug those POST requests. Browser
> > debugging is out of the question obviously cause I'm not at the
> > computer, ( and it doesn't have X ).
>
> > I've tried cgitb but that doesn't seem to work at all ...
>
> > import cgitb; cgitb.enable(display=0,logdir='/tmp/',format='plain')
> > import cgitb; cgitb.enable()
>
> > ... neither of those commands have any effect. Although I do log other
> > parts of the script to /tmp, so I know that it's reachable...
>
> > mod_pythonabsolutely refuses to error_log to the apache error_log. I
> > have restarted it and it still won't flush whatever error buffer it
> > may ( or may not ) have stored.
>
> > I can re-constitute the requests in my browser using a GET request.
> > But frankly, that's kinda messy - there are lots of paypal IPN
> > combinations and I may have to integrate other applications with
> > paypal. So ideally speaking I'm looking for a proper debugging
> > environment for this kind of thing ...
>
> > Basically, I either wantmod_pythonto start error_logging properly,
> > or I want some type of working traceback environment to be available.
> > Help !
>
> > Server version: Apache/2.0.52
> > Server built: Aug 13 2006 03:29:43
> > CentOS4.x: (RedHat Clone)mod_python.i386 3.1.3-5.1
> > installed
>
> > # httpd.conf
>
> >
>
> > ServerName mydomain.biz
> > ServerAliaswww.mydomain.biz
> > SetHandlermod_python
> > PythonPath "['/home/babo/django'] + sys.path"
> > PythonHandler django.core.handlers.modpython
> > SetEnv DJANGO_SETTINGS_MODULE mydomain.settings
>
> >
> >SetHandler None
> >Options None
> >
>
> >
>
> > My python.conf: ( seems pretty normal )
>
> > #
> > #Mod_pythonis a module that embeds the Python language interpreter
> > # within the server, allowing Apache handlers to be written in Python.
> > #
>
> > LoadModule python_module modules/mod_python.so
>
> > # Override type-map handler for /var/www/manual
> >
> >
> > SetHandler default-handler
> >
> >
>
> > # This will cause files beneath /var/www/html with the extension .spam
> > # to be handled by the Python script /var/www/html/eggs.py
> > #
> > #
> > #AddHandler python-program .spam
> > #PythonHandler eggs
> > #
>
> > # This will cause all requests to the /python heirachy of your
> > # webserver to be handled by the python script /path/to/myhandler.py
> > #
> > #
> > #SetHandler python-program
> > #PythonPath "sys.path + ['/path/to']"
> > #PythonHandler myhandler
> > #
>
> > # This will cause all requests to the /python heirachy of your
> > # webserver to be handled bymod_python'sPublisher handler
> > # (seehttp://localhost/manual/mod/mod_python/hand-pub.html)
> > #
> > # This will cause the output of all requests to files beneath
> > # /var/www/html with the extension .flt to be filtered through
> > # the Python script /var/www/html/filter.py
> > #
> > #
> > #PythonOutputFilter filter MYFILTER
> > #AddOutputFilter MYFILTER .flt
> > #
Hi Graeme,
Thanks for the suggestion. Unluckily for me, it doesn't seem to be
working though ...
I've tried it a number of different ways. I guess if I put the code
after an exception, then the code won't be called.
So I ran an error in the python script and then I called the
sys.stderr.flush() from the python shell. No luck though.
I called on it's own, still no luck,
Then I tried ...
try:
raise Exception('Please log this error')
except:
import sys
sys.stderr.flush()
sys.stdout.flush()
The error log still has no error info in it :-(
Is this problem unique to me ?
This is startup message that gets posted to error_log on apache
restart ... (The IIS string is a mod_sec Security Signature)
[Wed Apr 18 19:58:25 2007] [notice] mod_python: (Re)importing module
'django.core.handlers.modpython'
[Wed Apr 18 19:58:32 2007] [notice] mod_python: (Re)importing module
'django.core.handlers.modpython'
DEBUG: InitPostgres
DEBUG: InitPostgres
[Wed Apr 18 19:59:56 2007] [notice] caught SIGTERM, shutting down
[Wed Apr 18 19:59:57 2007] [notice] suEXEC mechanism enabled
Re: Using the Python interpreter
On Thu, 19 Apr 2007 01:32:36 +0100, [EMAIL PROTECTED] wrote (in article <[EMAIL PROTECTED]>): > Instead of starting IDLE as I normally do, I started the Python > interpreter and tried to run a program. I got a Python prompt (>>>), > and then tried unsuccessfully to run a Python script named Script1.py > that runs perfectly well in IDLE. Here's what I did: > Script1.py > Traceback (most recent call last): > File "", line 1, in ? > NameError: name Script1 is not defined > python Script1.py > File "", line 1 >python Script1.py > SyntaxError: invalid syntax > > I can load it (and have it execute) by typing > import Script1 > 0 > 1 > 2 > 3 > 4 > > and if I edit it, I can then execute it by reloading it > import Script1 > 0 > 1 > 2 > 3 > 4 > > > But this seems contrived - is there no way to repeatedly run Script1 > from the interpreter without reloading it? > > Thomas Philips > Why dont you wrap the code into a procedure (a def statement) in your script1 file import it using the from xxx import yyy statement. Then you can use it over and over. By the sounds of it your script is full of inline code that is executed when its imported and therefore only runs once. To get it to re-run you have to repeatedly import it. Your really should only need to do this under very specific circumstances. Steve -- http://mail.python.org/mailman/listinfo/python-list
indexing web pages - in python?
Are there any open source search engines written in python for indexing a given collection of (internal only) html pages? Right now I'm talking about dozens, but hopefully it'll be hundreds or thousands at some point. I'm thinking some sort of CGI script, with perhaps a cron job that updates the indexes. I'm not particularly looking for something that has a full RDBMS behind it - just a file that stores indexes. I'll go with an RDBMS-based solution if I must, but I don't think that's really needed at this point. TIA -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
"Terry Reedy" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Should be in the reference manual section on comparisons. Only to this extent: http://www.python.org/doc/2.4/ref/comparisons.html objects of different types always compare unequal, and are ordered consistently but arbitrarily. (This unusual definition of comparison was used to simplify the definition of operations like sorting and the in and not in operators. In the future, the comparison rules for objects of different types are likely to change.) ... Most other types compare unequal unless they are the same object; the choice whether one object is considered smaller or larger than another one is made arbitrarily but consistently within one execution of a program. This does not provide a direct answer to "why" None comparisons. (As far as I can tell, None is less than any object.) However, Gary Herron's explanation makes sense: this provides a stable sort when None is involved, and meets the criterion that objects of different types must always compare unequal. However this would also be true if None always compared greater than any object, and the current behavior does not seem to be guaranteed. Is that about right? Cheers, Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list
Re: Spawn/Exec with asterisk in argument
[EMAIL PROTECTED] wrote:
> The spawn* and exec* functions appear to escape asterisks, I'm
> guessing all shell characters too, before the spawn/exec'ed process
> sees them.
No. It is the shell that ordinarily processes these characters and gives
them a special meaning. On most systems, ls does not give any special
meaning to asterisk.
> Is there a way around this?
If you want to process asterisk the way the shell does, you can pass
things through the shell. os.system is one way of doing that. Probably
better is:
subprocess.check_call("ls -l *", shell=True)
Another way is using the glob module (and optionally
os.path.expanduser() for tilde expansion and os.path.expandvars() for
variable expansion, other things that are normally taken care of by the
shell).
--
Michael Hoffman
--
http://mail.python.org/mailman/listinfo/python-list
Re: Using the Python interpreter
[EMAIL PROTECTED] wrote: > Instead of starting IDLE as I normally do, I started the Python > interpreter and tried to run a program. I got a Python prompt (>>>), > and then tried unsuccessfully to run a Python script named Script1.py > that runs perfectly well in IDLE. Here's what I did: > Script1.py > Traceback (most recent call last): > File "", line 1, in ? > NameError: name Script1 is not defined > python Script1.py You need to do this from a Windows command line, not from Python. C:\Python25>python Script1.py Hello, world! -- Michael Hoffman -- http://mail.python.org/mailman/listinfo/python-list
Re: Third party script debugging on remote server ...
On Apr 19, 1:52 am, dbee <[EMAIL PROTECTED]> wrote:
> On Apr 19, 12:31 am, Graham Dumpleton <[EMAIL PROTECTED]>
> wrote:
>
>
>
> > After calling whatever it is that is writing to standard output/error,
> > do:
>
> > import sys
> > sys.stdout.flush()
> > sys.stderr.flush()
>
> > This should cause any buffered data to be immediately flushed to the
> > main Apache error log, ie., don't look in any virtual host logs, check
> > the main one.
>
> > Graham
>
> > On Apr 19, 9:15 am, dbee <[EMAIL PROTECTED]> wrote:
>
> > > Right. I've got a really, really annoying/difficult/time consuming
> > > problem with my development environment. I'm using django to build a
> > > web app with paypal integration. My server is hosted remotely, and it
> > > is receiving IPN (payment notifications) POST requests from Paypal.
> > > I've checked on google and irc and this is my last shot at solving
> > > this before I go mad ... :-(
>
> > > The problem is that I can't debug those POST requests. Browser
> > > debugging is out of the question obviously cause I'm not at the
> > > computer, ( and it doesn't have X ).
>
> > > I've tried cgitb but that doesn't seem to work at all ...
>
> > > import cgitb; cgitb.enable(display=0,logdir='/tmp/',format='plain')
> > > import cgitb; cgitb.enable()
>
> > > ... neither of those commands have any effect. Although I do log other
> > > parts of the script to /tmp, so I know that it's reachable...
>
> > > mod_pythonabsolutely refuses to error_log to the apache error_log. I
> > > have restarted it and it still won't flush whatever error buffer it
> > > may ( or may not ) have stored.
>
> > > I can re-constitute the requests in my browser using a GET request.
> > > But frankly, that's kinda messy - there are lots of paypal IPN
> > > combinations and I may have to integrate other applications with
> > > paypal. So ideally speaking I'm looking for a proper debugging
> > > environment for this kind of thing ...
>
> > > Basically, I either wantmod_pythonto start error_logging properly,
> > > or I want some type of working traceback environment to be available.
> > > Help !
>
> > > Server version: Apache/2.0.52
> > > Server built: Aug 13 2006 03:29:43
> > > CentOS4.x: (RedHat Clone)mod_python.i386
> > > 3.1.3-5.1
> > > installed
>
> > > # httpd.conf
>
> > >
>
> > > ServerName mydomain.biz
> > > ServerAliaswww.mydomain.biz
> > > SetHandlermod_python
> > > PythonPath "['/home/babo/django'] + sys.path"
> > > PythonHandler django.core.handlers.modpython
> > > SetEnv DJANGO_SETTINGS_MODULE mydomain.settings
>
> > >
> > >SetHandler None
> > >Options None
> > >
>
> > >
>
> > > My python.conf: ( seems pretty normal )
>
> > > #
> > > #Mod_pythonis a module that embeds the Python language interpreter
> > > # within the server, allowing Apache handlers to be written in Python.
> > > #
>
> > > LoadModule python_module modules/mod_python.so
>
> > > # Override type-map handler for /var/www/manual
> > >
> > >
> > > SetHandler default-handler
> > >
> > >
>
> > > # This will cause files beneath /var/www/html with the extension .spam
> > > # to be handled by the Python script /var/www/html/eggs.py
> > > #
> > > #
> > > #AddHandler python-program .spam
> > > #PythonHandler eggs
> > > #
>
> > > # This will cause all requests to the /python heirachy of your
> > > # webserver to be handled by the python script /path/to/myhandler.py
> > > #
> > > #
> > > #SetHandler python-program
> > > #PythonPath "sys.path + ['/path/to']"
> > > #PythonHandler myhandler
> > > #
>
> > > # This will cause all requests to the /python heirachy of your
> > > # webserver to be handled bymod_python'sPublisher handler
> > > # (seehttp://localhost/manual/mod/mod_python/hand-pub.html)
> > > #
> > > # This will cause the output of all requests to files beneath
> > > # /var/www/html with the extension .flt to be filtered through
> > > # the Python script /var/www/html/filter.py
> > > #
> > > #
> > > #PythonOutputFilter filter MYFILTER
> > > #AddOutputFilter MYFILTER .flt
> > > #
>
> Hi Graeme,
>
> Thanks for the suggestion. Unluckily for me, it doesn't seem to be
> working though ...
>
> I've tried it a number of different ways. I guess if I put the code
> after an exception, then the code won't be called.
> So I ran an error in the python script and then I called the
> sys.stderr.flush() from the python shell. No luck though.
>
> I called on it's own, still no luck,
>
> Then I tried ...
>
> try:
>
> raise Exception('Please log this error')
>
> except:
>
> import sys
>
> sys.stderr.flush()
> sys.stdout.flush()
>
> The error log still has no error info in it :-(
>
> Is this problem unique to me ?
>
> This is startup message that gets posted to error_log on apache
> restart ... (The IIS string is a mod_sec Security Signature)
> [Wed Apr 18 19:58:25 2007] [notice] mod_python: (Re)importing module
Re: indexing web pages - in python?
On Apr 18, 8:55 pm, Dan Stromberg <[EMAIL PROTECTED]> wrote: > Are there any open source search engines written in python for indexing a > given collection of (internal only) html pages? Right now I'm talking > about dozens, but hopefully it'll be hundreds or thousands at some point. > > I'm thinking some sort of CGI script, with perhaps a cron job that updates > the indexes. > > I'm not particularly looking for something that has a full RDBMS behind > it - just a file that stores indexes. I'll go with an RDBMS-based > solution if I must, but I don't think that's really needed at this point. > > TIA You could try: http://gnosis.cx/download/indexer.py There is an extensive write-up by the author at: http://gnosis.cx/publish/programming/charming_python_15.txt Might be something you'd be interested in ... -- http://mail.python.org/mailman/listinfo/python-list
Re: What makes an iterator an iterator?
An iterator is an object with a .__iter__ method that returns self and a .next method that either returns an object or raises StopIteration. One very good way to get an iterator from an iterable is for .__iter__ to be a generator function. When called, it returns an generator with .__iter__ and .next methods that work as specified. words = "Norwegian Blues have beautiful plumage!".split() print words prints ['Norwegian', 'Blues', 'have', 'beautiful', 'plumage!'] class Parrot(object): def __init__(self, words): self.words = words def __iter__(self): for word in words: yield word for word in Parrot(words): print word prints Norwegian Blues have beautiful plumage! One can also make an iterable an (self) iterator by correctly writing the two needed methods. class Parrot2(object): def __init__(self, words): self.words = words def __iter__(self): self.it = -1 return self def next(self): self.it += 1 try: return self.words[self.it] except IndexError: raise StopIteration for word in Parrot2(words): print word which prints the same 5 lines. However, when an object is its own iterator, it can only be one iterator at a time (here, pointing at one place in the word list), whereas the first method allows multiple iterators (here, possibly pointing to different places in the list. | Can you explain some of the details of why this code fails: [snip all examples of bad code that violate the iterator rule by improperly writing .next as a generator function] I think most people should learn how to write iterators correctly, as I gave examples of above, rather than worry about the details of how and why mis-written code fails with a particular version of a particular implementation. So I won't go down that road. Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Compiling python from soruce vs RPM ?
On Apr 19, 6:10 am, Paul Boddie <[EMAIL PROTECTED]> wrote: > > Since /usr/bin/python isn't found, it doesn't look like there's an > existing version of Python that you might overwrite, but it's > important to verify such things when installing software. That's where > your distribution's packages have an advantage, and it's arguably a > better idea to install such packages instead, possibly building them > from source if no binary packages exist yet for Python 2.5. (If no > source packages exist, you have a bit more work to do.) > > Paul Thanks. One more question: How to uninstall using the source package? the source package doesn't come with `make uninstall`? -- http://mail.python.org/mailman/listinfo/python-list
Re: Strange terminal behavior after quitting Tkinter application
Chris wrote: > > But does anyone know why the Tkinter program is doing this to the > terminal in the first place? I don't want to have to tell users of my > program that they must recover their terminal's sanity each time after > running my program. > I don't know about Tkinter, but my guess would be that it has to change the terminal settings to do what it does, and you are quitting without restoring the settings. Is there some Tkinter clean up that you have omitted ? Have you ensured that the clean up runs on both normal exit and abnormal exit (eg ^C) ? For example, the curses library (in C) requires an endwin() call before exit to restore settings. If this is omitted, a "stty sane" is needed to set the terminal to a semi-sensible default. On Unix and similar systems, signal handlers are normally installed to ensure (as far as possible) that the cleanup occurs if the process is killed. This also applies to vi and similar programs that take total control of the terminal. Charles -- http://mail.python.org/mailman/listinfo/python-list
Re: python - dll access (ctypes or swig)
Thomas Heller <[EMAIL PROTECTED]> wrote: ... > > and some technical issues such as threading (if COM client and server ... > I think that the latter problem (incompatible threading models in the same > process) are solved by COM apartments - aren't they? "apartment" is one threading model, but it still means that your application and your in-process server must be compatible with it (again, we're discussing the fact that out-of-process servers, at a performance price, can do away with these minor limitations). Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: What makes an iterator an iterator?
7stud <[EMAIL PROTECTED]> wrote: ... > Can you explain some of the details of why this code fails: ... > def next(self): > for word in "Norwegian Blue's have beautiful > plumage!".split(): > yield word Sure, easily: a loop like "for x in y:" binds an unnamed temporary variable (say _t) to iter(y) and then repeatedly calls _t.next() [or to be pedantic type(_t).next(t)] until that raises StopIteration. Calling a generator, such as this next method, returns an iterator object; calling it repeatedly returns many such iterator objects, and never raises StopIteration, thus obviously producing an unending loop. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
"Terry Reedy" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Should be in the reference manual section on comparisons. Only to this extent: http://www.python.org/doc/2.4/ref/comparisons.html objects of different types always compare unequal, and are ordered consistently but arbitrarily. (This unusual definition of comparison was used to simplify the definition of operations like sorting and the in and not in operators. In the future, the comparison rules for objects of different types are likely to change.) ... Most other types compare unequal unless they are the same object; the choice whether one object is considered smaller or larger than another one is made arbitrarily but consistently within one execution of a program. This does not provide a direct answer to "why" None comparisons. (As far as I can tell, None is less than any object.) However, Gary Herron's explanation makes sense: this provides a stable sort when None is involved, and meets the criterion that objects of different types must always compare unequal. However this would also be true if None always compared greater than any object, and the current behavior does not seem to be guaranteed. Is that about right? Cheers, Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list
Re: Future Python Gui?
> The wrapper I maintain works differently, and includes the notebook widget. I've seen the page. You can get to it via Google's cache; just put the url in the box and the one search result returned usually has a "cached" link. However, that file is completely useless without instructions on how to use it, and there are no instructions within the page or file. That is: - exactly where does it get installed - what else needs to get installed (eg. some dll) - where do you find these other things - where does that something else get installed - how do you import this module - how does use of Tkinter change (if at all) once imported I know all this stuff is obvious to those that have been working with it for a while, but for those of us just getting started with Python, it's immensely frustrating that we're assumed to know all these steps. -- Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: Python COM iterator
>[...]
> > On Tue, 2007-04-17 at 16:54 -0500, Larry Bates wrote:
> >> Does anyone know if there is a way to make a Python COM object
> >> act like a proper iterator in VB/Delphi?
>[...]
After more googling, staring at win32com's code, and a fair bit of trial
and error, I've come up with the following working example:
# server.py
import pythoncom
class HelloWorld:
_reg_clsid_ = "{CAB8BED1-9174-4AAD-ABC5-F377951CB71B}"
_reg_desc_ = "Python Test COM Server"
_reg_progid_ = "Python.TestServer"
_public_methods_ = ['Next']
_com_interfaces_ = [pythoncom.IID_IEnumVARIANT]
def __init__(self):
self.numbers=[1,2,3,4,5,6,7,8]
def Next(self, count):
assert count==1
try:
return (self.numbers.pop(0),)
except IndexError:
return ()
def _NewEnum(self):
import win32com.server.util
return win32com.server.util.wrap(self)
if __name__=='__main__':
import win32com.server.register
win32com.server.register.UseCommandLine(HelloWorld)
# client.py
import win32com.client
comobj = win32com.client.Dispatch("Python.TestServer")
for x in comobj:
print x
This works for me on Python 2.5 and pywin32 Build 210, but I don't know
whether clients in VB or Delphi are able to use this iterator.
-Carsten
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python Threads -
S.Mohideen <[EMAIL PROTECTED]> wrote: > Hi All, > > Can you please suggest a technique in Python where we can spawn few number > of worker threads and later map them to a function/s to execute individual > Jobs. > > Any references would be helpful.. I believe I give some examples in the Nutshell, but the basic idea is very simple: start the N worker threads you want in your pool -- they all use .get on the same Queue.Queue instance qI which contains "work requests" (WRs). A WR could e.g. be a tuple with a Queue qO (or None to indicate that the result is not interesting), a callable, and 0+ arguments (or an empty tuple to request thread termination); the worker thread just calls the callable on the arguments and puts the result to qO (if qO is not None). Many other similar arrangements are possible, depending on your application's exact needs, but I hope the general idea is clear. Alex -- http://mail.python.org/mailman/listinfo/python-list
Question about Tkinter MenuOption variable
Is there anyway to set the individual options in Tkinter to a particular variable. For example, I have a menu option(code is below) which has January, February, March and so on, which I would like to have corresponding values of 01, 02, 03 and so on. Can someone please tell me how to do that within the context of the code I have below - or even totally modify it if you must. Label(self, text = "Month" ).grid(row = 5, column = 1, sticky = W) OPTIONS = [ "Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sep", "Oct", "Nov", "Dec"] default_option = StringVar(self) default_option.set(OPTIONS[0]) self.month_option = OptionMenu(self, default_option, *OPTIONS) self.month_option.grid(row = 5, column = 2, sticky = W) -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner: Formatting text output (PyQt4)
On Wed, 18 Apr 2007 22:50:14 +, Glen wrote: Ok, obviously, my post didn't come out the way I wanted it to. In the first example from my text file below, the dictionary pairs, constructed from sorted tuples were in straight columns. When I write them to my QTextEdit, however, the columns are no longer straight. Some of the padding inserted by my call to rightJustified() are not equal to the actual size of the text, so some rows are longer than others in the text browser. I know I've encountered this before, perhaps with Java, but I can't remember the solution. How do I get the formatting of my output to the gui to reflect the output I would get to a file using the builtin write() function? Any help is appreciated. Sorry about the confusion. Thanks, G > Hello again, I don't blame anyone for not answering my last post, since > I obviously hadn't spent much time researching, but I've come a little > ways and have another question. > > How can I better format text output to a QTextEdit object? I'm > inserting 5 columns into each row. When I write the info to a file, it > looks like the following: > > 42: 115 26: 114 35: 112 19: 108 16: 107 45: 107 40: > 106 5: 105 41: 104 2: 103 > 9: 102 48: 102 15: 101 22: 101 27: 101 > 39: 101 43: 101 10: 100 6: 99 34: 99 32: 98 49: > 98 20: 97 30: 97 8: 96 17: 96 38: 96 12: 95 > 14: 95 37: 95 > 4: 94 13: 94 44: 94 36: 93 3: 92 > 24: 92 28: 92 31: 91 29: 89 7: 88 > 1: 87 18: 85 46: 85 33: 84 11: 83 > 23: 83 47: 82 25: 80 21: 79 50: 56 52: 39 51: > 38 53: 36 54: 25 55: 18 > > When I write the contents of the file to my TextEdit object it comes out > uneven, something like this: > 42: 11526: 11435: 11219: 10816: 107 45: 10740: 106 > 5: 10541: 104 2: 103 9: 10248: 10215: 10122: 101 27: > 101 39: 10143: 10110: 1006: 9934: 99 32: 9849: 98 >20: 9730: 978: 96 17: 9638: 9612: 9514: 95 > 37: 95 4: 9413: 9444: 9436: 933: 92 24: 92 28: > 9231: 9129: 897: 88 > 1: 8718: 8546: 8533: 8411: 83 > 23: 8347: 8225: 8021: 7950: 56 52: 3951: 38 > 53: 3654: 2555: 18 > > What seems to be happening is that the font that pyqt is using is not > fixed width, so I did this: > qTxtFormat = QTextCharFormat() > qTxtFormat.setFontFixedPitch(True) > ui.textEdit.setCurrentCharFormat(qTxtFormat) > > Also, I tried using the pyqt formatting such as the following: > > qStr = QtCore.QString( QtCore.QString( str(tL2[i][0]) > ).rightJustified(2) + ':' + QtCore.QString( str(tL2[i][1]) > ).rightJustified(4) ) > This still gives me uneven columns. > > Any suggestions? > > Thanks, > > Glen -- http://mail.python.org/mailman/listinfo/python-list
Weekly Python Patch/Bug Summary
Patch / Bug Summary ___ Patches : 357 open ( +8) / 3745 closed ( +8) / 4102 total (+16) Bugs: 958 open (+19) / 6657 closed ( +9) / 7615 total (+28) RFE : 251 open ( +2) / 280 closed ( +2) / 531 total ( +4) New / Reopened Patches __ Help with Python codebase (2007-04-11) CLOSED http://python.org/sf/1698723 opened by Munawar Update to Macintosh library documentation (2007-04-11) http://python.org/sf/1698768 opened by Kevin Walzer ZipFile.printdir fix (2.5) (2007-04-11) http://python.org/sf/1698915 opened by Alan McIntyre ZipFile.printdir fix (2.6) (2007-04-11) http://python.org/sf/1698917 opened by Alan McIntyre Bastion and rexec message out-of-date (2007-04-12) http://python.org/sf/1698951 opened by Gabriel Genellina getstate/setstate for incremental codecs (2007-04-12) CLOSED http://python.org/sf/1698994 opened by Walter Dörwald replacing char* with const char* in sysmodule.c/.h (2007-04-12) http://python.org/sf/1699259 opened by sebastinas Armin's method cache optimization updated for Python 2.6 (2007-04-13) http://python.org/sf/1700288 opened by Kevin Jacobs VC6 build patch for trunk (2007-04-14) http://python.org/sf/1700463 opened by Hirokazu Yamamoto stack size of python_d.exe on VC6 (2007-04-14) http://python.org/sf/1700467 opened by Hirokazu Yamamoto link_objects in setup.cfg crashes build (2007-04-18) http://python.org/sf/1703178 opened by Markus Schatten silenced a compiler warning (2007-04-18) http://python.org/sf/1703268 opened by Alexander Belopolsky missing declaration in readline.c (2007-04-18) http://python.org/sf/1703270 opened by Alexander Belopolsky bug fix: ctypes truncates 64-bit pointers (2007-04-18) http://python.org/sf/1703286 opened by Alexander Belopolsky fixes non ansi c declarations in libffi (2007-04-18) http://python.org/sf/1703300 opened by Alexander Belopolsky Refactor test_frozen.py to use unittest. (2007-04-18) http://python.org/sf/1703379 opened by Jerry Seutter Patches Closed __ Fix test_urllib on Windows buildbots (2007-04-07) http://python.org/sf/1695862 closed by zseil Don't block on Queue get/put when time is moved back (2007-03-29) http://python.org/sf/1690578 closed by loewis struct.pack() on 64bit architectures (2004-03-30) http://python.org/sf/925932 closed by zseil bug# 1607041: Condition.wait timeout fails on clock change (2006-12-01) http://python.org/sf/1607149 closed by loewis Add IllegalStateError (2007-03-21) http://python.org/sf/1685642 closed by gvanrossum Help with Python codebase (2007-04-11) http://python.org/sf/1698723 closed by gbrandl getstate/setstate for incremental codecs (2007-04-12) http://python.org/sf/1698994 closed by doerwalter Change *args from a tuple to list (2006-05-31) http://python.org/sf/1498441 closed by collinwinter New / Reopened Bugs ___ README is referencing obsolete? http://starship.python.net (2007-04-09) http://python.org/sf/1696740 opened by Jiri Navratil package.pth file name not used as described. (2007-04-09) http://python.org/sf/1697169 opened by cfk winreg module for cygwin? (2007-04-09) http://python.org/sf/1697175 opened by Zooko O'Whielacronx Property with -> annotation triggers assert (2007-04-09) http://python.org/sf/1697248 opened by Guido van Rossum types.InstanceType is missing but used by pydoc (2007-04-10) http://python.org/sf/1697782 reopened by gbrandl types.InstanceType is missing but used by pydoc (2007-04-10) http://python.org/sf/1697782 opened by Christian Heimes __getslice__ still used in built-in types (2007-04-10) http://python.org/sf/1697820 opened by Torsten Bronger Segfaults on memory error (2007-04-10) http://python.org/sf/1697916 reopened by gbrandl Segfaults on memory error (2007-04-10) http://python.org/sf/1697916 opened by STINNER Victor msgfmt cannot cope with BOM (2007-04-10) http://python.org/sf/1697943 opened by Christoph Zwerschke xml.etree document element.tag (2007-04-11) http://python.org/sf/1698167 opened by paul rubin wrong % of params for format string in ZipFile.printdir() (2007-04-11) http://python.org/sf/1698398 opened by Szabolcs Berecz dtdparser discards last line (2007-04-11) CLOSED http://python.org/sf/1698944 opened by L. Peter Deutsch shlex fails to parse strings correctly (2007-04-12) http://python.org/sf/1699594 opened by Collin Winter pickle example contains errors (2007-04-13) http://python.org/sf/1699759 opened by Mark Edgington locale.getlocale() output fails as setlocale() input (2007-04-13) http://python.org/sf/1699853 opened by Bernhard Reiter import and capital lett
Text Suffix to Prefix Conversion
Dear all, I'm a postgraduate student in Hong Kong, studying english language. I wanna seek help from all of you about some plain text manipulation. I have already add part-of-speech (POS) tags with angle bracket by software tagger, right after every word in my file, as attribute. How could I change the tag suffix to tag prefix? Original Sentence: An apple for you. Present: An apple for you .<.> Desire: An apple for you <.>. My file includes several hundred thousands of words. Manual editing is not possible. All suggestion are welcome!! EMC ROY 19/04/2007 -- http://mail.python.org/mailman/listinfo/python-list
Re: Text Suffix to Prefix Conversion
EMC ROY wrote: > Original Sentence: An apple for you. > Present: An apple for you .<.> > Desire:An apple for you <.>. >>> text = 'An apple for you .<.>' >>> import re >>> re.sub(r'(\S+)(<[^>]+>)(\s*)', r'\2\1\3', text) 'An apple for you <.>.' -- http://mail.python.org/mailman/listinfo/python-list
Re: What makes an iterator an iterator?
Hi, Thanks for the responses. > 7stud <[EMAIL PROTECTED]> wrote: > > Can you explain some of the details of why this code fails: > --- > class Parrot(object): > def __iter__(self): > return self > def __init__(self): > self.next = self.next().next > def next(self): > for word in "Norwegian Blue's have beautiful > plumage!".split(): > yield word > > P = Parrot() > for word in P: > print word > -- On Apr 18, 8:45 pm, [EMAIL PROTECTED] (Alex Martelli) wrote: > > ...a loop like "for x in y:" binds an unnamed temporary > variable (say _t) to iter(y) and then repeatedly calls _t.next() [or to > be pedantic type(_t).next(t)] until that raises StopIteration. A. Isn't this the crux: > repeatedly calls[type(_t).next(t)] As far as I can tell, if the call was actually _t.next(), the code I asked about would work. However, the name look up for 'next' when you call: P.next() is entirely different from the name look up for 'next' when you call: type(P).next(). In the first lookup, the instance attribute "next" hides the class attribute "next". In the second lookup, the "next" attribute of the class is returned, i.e. the next() method. Yet, a generator-function- call returns an iterator object that wraps the generator function, so when the for loop makes repeated calls to type(P).next(), an iterator object is repeatedly returned--what you want is i.next() to be returned. I suspected next() might be called through the class, but after carefully parsing the section on iterators (Python in a Nutshell, p. 65) where it says iter() returns an object i, and then the for loop repeatedly calls i.next(), I dismissed that idea. I have to admit I'm still a little confused by why you only parenthetically noted that information and called it pedantic. On Apr 18, 8:38 pm, "Terry Reedy" <[EMAIL PROTECTED]> wrote: > > One very good way to get an iterator from an iterable is for .__iter__ to > be a generator function. Ahhh. That eliminates having to deal with next().next constructs. Nice. > snip all examples of bad code that violate the iterator rule > by improperly writing .next as a generator function What iterator rule states that .next can't be a generator function? My book says an iterator is any object with a .next method that is callable without arguments (Python in a Nutshell(p.65) says the same thing). Also, my boos says an iterable is any object with an __iter__ method.As a result, next() and __iter__() don't have to be in the same object: lass MyIterator(object): def __init__(self, obj): self.toIterateOver = obj def next(self): for x in range(self.toIterateOver.age): print x raise StopIteration class Dog(object): def __init__(self, age): self.age = age def __iter__(self): return MyIterator(self) d = Dog(5) for year in d: print year I've read recommendations that an iterator should additionally contain an __iter__() method, but I'm not sure why that is. In particular PEP 234 says: -- Classes can define how they are iterated over by defining an __iter__() method; this should take no additional arguments and return a valid iterator object. A class that wants to be an iterator should implement two methods: a next() method that behaves as described above, and an __iter__() method that returns self. The two methods correspond to two distinct protocols: 1. An object can be iterated over with "for" if it implements __iter__() or __getitem__(). 2. An object can function as an iterator if it implements next(). Container-like objects usually support protocol 1. Iterators are currently required to support both protocols. The semantics of iteration come only from protocol 2; protocol 1 is present to make iterators behave like sequences; in particular so that code receiving an iterator can use a for-loop over the iterator. Classes can define how they are iterated over by defining an __iter__() method; this should take no additional arguments and return a valid iterator object. A class that wants to be an iterator should implement two methods: a next() method that behaves as described above, and an __iter__() method that returns self. The two methods correspond to two distinct protocols: 1. An object can be iterated over with "for" if it implements __iter__() or __getitem__(). 2. An object can function as an iterator if it implements next(). Container-like objects usually support protocol 1. Iterators are currently required to support both protocols. The semantics of iteration come only from protocol 2; protocol 1 is present to make iterators behave like sequences; in particular so that code receiving an iterator can use a for-loop over the iterator. >The semantics of >iteration come only from protocol 2 My example demonstrate
Re: Third party script debugging on remote server ...
> Hi Graeme,
>
> Thanks for the suggestion. Unluckily for me, it doesn't seem to be
> working though ...
>
> I've tried it a number of different ways. I guess if I put the code
> after an exception, then the code won't be called.
> So I ran an error in the python script and then I called the
> sys.stderr.flush() from the python shell. No luck though.
>
> I called on it's own, still no luck,
>
> Then I tried ...
>
> try:
>
> raise Exception('Please log this error')
>
> except:
>
> import sys
>
> sys.stderr.flush()
> sys.stdout.flush()
>
> The error log still has no error info in it :-(
>
> Is this problem unique to me ?
Those calls don't generate output themselves and exception details
don't get output at the point of a try/except block. If you want to
generate to Apache error log details of exception from try/except,
use:
import traceback
import sys
try:
xxx
except:
traceback.print_exc()
sys.stderr.flush()
Using these flush functions from interactive debugger isn't going to
show you anything as this trick is only needed with mod_python. All
the functions do is force the output of any buffered data that was
written out previously.
Graham
--
http://mail.python.org/mailman/listinfo/python-list
unicode and __repr__()
I am using repr() to pass arrays, dicts and combinations therof to javascript as it already returns a valid javascript expression (a string) right away. But for some reason it does not handle Umlaute correctly and those characters finally appear as two strange characters on the browser. I am using UTF-8 and assembling the string expression manually works okay and the umlaute appear correctly in the browser (so I could probably write my own serializer and it would work). The commandline shows a difference too: >>> print "["+"'ö'"+"]" ['ö'] <-- this is openbracket quote oumlaut quote closebracket >>> print ["ö"].__repr__() ['\xf6'] It works okay for all other chars, just the umlaute seem to be a problem. How can I get __repr__() to handle the umlauter correctly, or is there an easy way to postprocess the output ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner: Formatting text output (PyQt4)
Glen wrote: >> Hello again, I don't blame anyone for not answering my last post, > since >> I obviously hadn't spent much time researching, but I've come a little >> ways and have another question. >> >> How can I better format text output to a QTextEdit object? I'm >> inserting 5 columns into each row. When I write the info to a file, it >> looks like the following: >> >> 42: 115 26: 114 35: 112 19: 108 16: 107 45: 107 40: >> 106 5: 105 41: 104 2: 103 >> 9: 102 48: 102 15: 101 22: 101 27: 101 >> 39: 101 43: 101 10: 100 6: 99 34: 99 32: 98 49: >> 98 20: 97 30: 97 8: 96 17: 96 38: 96 12: 95 >> 14: 95 37: 95 >> 4: 94 13: 94 44: 94 36: 93 3: 92 >> 24: 92 28: 92 31: 91 29: 89 7: 88 >> 1: 87 18: 85 46: 85 33: 84 11: 83 >> 23: 83 47: 82 25: 80 21: 79 50: 56 52: 39 51: >> 38 53: 36 54: 25 55: 18 >> >> When I write the contents of the file to my TextEdit object it comes out >> uneven, something like this: >> 42: 11526: 11435: 11219: 10816: 107 45: 10740: 106 >> 5: 10541: 104 2: 103 9: 10248: 10215: 10122: 101 27: >> 101 39: 10143: 10110: 1006: 9934: 99 32: 9849: 98 >>20: 9730: 978: 96 17: 9638: 9612: 9514: 95 >> 37: 95 4: 9413: 9444: 9436: 933: 92 24: 92 28: >> 9231: 9129: 897: 88 >> 1: 8718: 8546: 8533: 8411: 83 >> 23: 8347: 8225: 8021: 7950: 56 52: 3951: 38 >> 53: 3654: 2555: 18 >> >> What seems to be happening is that the font that pyqt is using is not >> fixed width, so I did this: >> qTxtFormat = QTextCharFormat() >> qTxtFormat.setFontFixedPitch(True) >> ui.textEdit.setCurrentCharFormat(qTxtFormat) >> >> Also, I tried using the pyqt formatting such as the following: >> >> qStr = QtCore.QString( QtCore.QString( str(tL2[i][0]) >> ).rightJustified(2) + ':' + QtCore.QString( str(tL2[i][1]) >> ).rightJustified(4) ) >> This still gives me uneven columns. >> >> Any suggestions? >> >> Thanks, >> >> Glen > Do you need to use QTextEdit for the output? Sounds like maybe you should look at for example the QTableWidget or maybe the QTreeWidget? Tina -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison with None
Alan Isaac wrote: "Terry Reedy" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] Should be in the reference manual section on comparisons. Only to this extent: http://www.python.org/doc/2.4/ref/comparisons.html objects of different types always compare unequal, and are ordered consistently but arbitrarily. (This unusual definition of comparison was used to simplify the definition of operations like sorting and the in and not in operators. In the future, the comparison rules for objects of different types are likely to change.) ... Most other types compare unequal unless they are the same object; the choice whether one object is considered smaller or larger than another one is made arbitrarily but consistently within one execution of a program. This does not provide a direct answer to "why" None comparisons. (As far as I can tell, None is less than any object.) However, Gary Herron's explanation makes sense: this provides a stable sort when None is involved, and meets the criterion that objects of different types must always compare unequal. However this would also be true if None always compared greater than any object, and the current behavior does not seem to be guaranteed. Is that about right? Cheers, Alan Isaac I love scripting languages ... but sometimes an explicit evaluation that one would find in a compiled language is better. Which is why I suggested using the explicit type(x) == types.NoneType as opposed to x is None -- http://mail.python.org/mailman/listinfo/python-list
Re: How to communicate via USB "port"
"[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > >Can someone explain how I would read the data from the USB "port"? I >don't know if it matters, but I am trying to read the data from a GPS >plugged in to the USB port. USB is a "protocol" bus. It isn't like a serial port, where you can just start reading bits. Each device has one or more "interfaces", and each interface has one or more "pipe" for transmitting data. You have to know which "pipe" to talk to, what kind of pipe it is, and how to force the device to send before you can talk to it. On the other hand, as someone else pointed out, many types of USB devices fall into standard device classes, and the operating system supplies drivers for those classes. If your GPS device is in the communication class, you might be able to pretend it is a serial device. -- Tim Roberts, [EMAIL PROTECTED] Providenza & Boekelheide, Inc. -- http://mail.python.org/mailman/listinfo/python-list
Re: Text Suffix to Prefix Conversion
On Apr 18, 11:08 pm, Steven Bethard <[EMAIL PROTECTED]> wrote: > EMC ROY wrote: > > Original Sentence: An apple for you. > > Present: An apple for you .<.> > > Desire:An apple for you <.>. > >>> text = 'An apple for you .<.>' > >>> import re > >>> re.sub(r'(\S+)(<[^>]+>)(\s*)', r'\2\1\3', text) > > 'An apple for you <.>.' If you end up calling re.sub() repeatedly, e.g. for each line in your file, then you should "compile" the regular expression so that python doesn't have to recompile it for every call: import re text = 'An apple for you .<.>' myR = re.compile(r'(\S+)(<[^>]+>)(\s*)', r'\2\1\3') re.sub(myR, r'\2\1\3', text) Unfortunately, I must be doing something wrong because I can't get that code to work. When I run it, I get the error: Traceback (most recent call last): File "2pythontest.py", line 3, in ? myR = re.compile(r'(\S+)(<[^>]+>)(\s*)', r'\2\1\3') File "/Library/Frameworks/Python.framework/Versions/2.4/lib/ python2.4/sre.py", line 180, in compile return _compile(pattern, flags) File "/Library/Frameworks/Python.framework/Versions/2.4/lib/ python2.4/sre.py", line 225, in _compile p = sre_compile.compile(pattern, flags) File "/Library/Frameworks/Python.framework/Versions/2.4/lib/ python2.4/sre_compile.py", line 496, in compile p = sre_parse.parse(p, flags) File "/Library/Frameworks/Python.framework/Versions/2.4/lib/ python2.4/sre_parse.py", line 668, in parse p = _parse_sub(source, pattern, 0) File "/Library/Frameworks/Python.framework/Versions/2.4/lib/ python2.4/sre_parse.py", line 308, in _parse_sub itemsappend(_parse(source, state)) File "/Library/Frameworks/Python.framework/Versions/2.4/lib/ python2.4/sre_parse.py", line 396, in _parse if state.flags & SRE_FLAG_VERBOSE: TypeError: unsupported operand type(s) for &: 'str' and 'int' Yet, these two examples work without error: -- import re text = 'An apple for you .<.>' #myR = re.compile(r'(\S+)(<[^>]+>)(\s*)', r'\2\1\3') print re.sub(r'(\S+)(<[^>]+>)(\s*)', r'\2\1\3', text) myR = re.compile(r'(hello)') text = "hello world" print re.sub(myR, r"\1XXX", text) -output: An apple for you <.>. helloXXX world Can anyone help? -- http://mail.python.org/mailman/listinfo/python-list
Re: Nested dictionaries trouble
On Wed, 18 Apr 2007 12:16:12 -0700, IamIan wrote: > I am using the suggested approach to make a years list: > > years = ["199%s" % x for x in range(0,10)] > years += ["200%s" % x for x in range(0,10)] > > I haven't had any luck doing this in one line though. Is it possible? years = ["199%s" % x for x in range(0,10)] + \ ["200%s" % x for x in range(0,10)] Sorry for the line continuation, my news reader insists on breaking the line. In your editor, just delete the "\" and line break to make it a single line. If you don't like that solution, here's a better one: years = [str(1990 + n) for n in range(20)] Or there's this: years = [str(n) for n in range(1990, 2010)] Or this one: years = map(str, range(1990, 2010)) -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: What makes an iterator an iterator?
Steven D'Aprano <[EMAIL PROTECTED]> writes: > class Parrot(object): > def __iter__(self): > return self > def __init__(self): > self.next = self._next() > def _next(self): > for word in "Norwegian Blue's have beautiful plumage!".split(): > yield word Clearly the problem is you've misused an apostrophe. Python doesn't like the plural getting an apostrophe. http://www.angryflower.com/bobsqu.gif> -- \ "Speech is conveniently located midway between thought and | `\ action, where it often substitutes for both." -- John Andrew | _o__) Holmes, _Wisdom in Small Doses_ | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Strange terminal behavior after quitting Tkinter application
Hi, I'm puzzled by some strange behavior when my Python/Tkinter application quits (on linux): the terminal from which I started Python is messed up. If start up python, then import the code below, then start the program with Application(), then click the Quit button, my terminal never prints anything again (such as commands I type). import Tkinter import sys class Application(Tkinter.Tk): def __init__(self,**config): Tkinter.Tk.__init__(self,**config) Tkinter.Button(self,text="Quit",command=self.quit_application).pack() def quit_application(self): sys.exit() Can anyone tell me what I'm doing wrong? Thanks for your help. Chris -- http://mail.python.org/mailman/listinfo/python-list
Re: Strange terminal behavior after quitting Tkinter application
(I'm not sure what happened to the formatting in my post: the "Tkinter.Button" line should be at the same level of indentation as the "Tkinter.Tk.__init__" line.) -- http://mail.python.org/mailman/listinfo/python-list
Win32com, and Excel issues.
Hi all,
I'm doing some Excel automation work for a friend, and am developing
on a machine running Office 2000. My friends machine is running Excel
2003. The code I've written works like a charm on my machine (in fact
all three of my machines), but falls over early on on Excel 2003.
The code snippet it falls over on is code to copy one worksheet after
another:
app = wincl.Dispatch("Excel.Application")
app.Visible = True
app.Workbooks.Open(self.filename)
sheet = app.Worksheets(1)
sheet.Copy(None, sheet)
and this last line throws the following exception:
pywintypes.com_error: (-2147417851, 'the server threw an exception.'
, None, None)
which isn't too helpful.
I'm wondering if something has changed in the Excel API that doesn't
allow a null parameter to Copy or some similar issue. I tried using
the keyword argument format, but that simply refused to work.
Other relevant information:
* The program is packaged using py2exe, so I know that the same
version of Python, and the same libraries are on each machine.
* One of the test machines running Excel 2000 does not have Python
installed.
* The machines are all of a similar spec.
Any ideas are welcome!
--
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Re: ??? POLICE AND CITY/UNIVERSITY OFFICIALS INCOMPETENCE LEADS TO 33 KILLED BY KOREAN-ALQAEDA TERRORIST ???
On Apr 17, 12:18 pm, utabintarbo <[EMAIL PROTECTED]> wrote: > On Apr 17, 10:32 am, Muhammad <[EMAIL PROTECTED]> wrote: > > > On Apr 17, 7:56 am, [EMAIL PROTECTED] wrote: > >> - > > You mentioned "Korean Al-Qaeda Terrorist" in the title! Honesty > > demands that you establish it as a fact that the person was connected > > to Al-Qaeda and that he was a terrorist and not some mentally sick > > fellow. > > Muhammad > > Just do it in a more appropriate forum, mmmkay? Sorry about that. But I only post when I feel it necessary. And I thought that if I let this person be, it might get to: But Al-Qaeda is a Muslim terrorist organization, let us go get Muslims. Precisely like Wafa Sultan and Co. who want to eradicate "Radical Islam" for a start, but end up saying "There is no moderate Muslim". In other words, "Get all the Muslims". Not that it frightens me, I have seen much worse, but it is a bother. Muhammad -- http://mail.python.org/mailman/listinfo/python-list
Signals
Hello Chaps,
I posted about this the other day but I'm still struggling to get any form
of result from it. Basically I have the following piece of code, and
according to its API is produces singals when particular events occur, but i
have no idea how to list for events, I've tried all sorts of combinations
using the signal module but haven't been able to get it working.
#!/usr/bin/python
import dbus, signal
bus = dbus.SystemBus()
obj = bus.get_object('org.bluez', '/org/bluez')
obj = bus.get_object('org.bluez', '/org/bluez/hci0')
adapter = dbus.Interface(obj, 'org.bluez.Adapter')
adapter.DiscoverDevices()
Now here is a copy of the API documentation that lists the signals thrown by
the API, this is the one I'm trying to listen for.
void RemoteDeviceFound(string address, uint32 class, int16 rssi)
This signal will be send every time an inquiry result
has been found by the service daemon. In general they
only appear during a device discovery.
Basically I'm just looking to run a function that will print those details
to screen. Can anyone help with working out how to listen for this signal?
I'd also like to know how i can keep the application running until I decided
to stop it manually, as the DiscoverDevices() can take a while to complete
and send out several RemoteDeviceFound() signals in that period.
Thanks guys
Rob
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Re: Queue enhancement suggestion
On 2007-04-17, Jean-Paul Calderone <[EMAIL PROTECTED]> wrote: > On 17 Apr 2007 14:32:01 GMT, Antoon Pardon <[EMAIL PROTECTED]> wrote: >>On 2007-04-17, Jean-Paul Calderone <[EMAIL PROTECTED]> wrote: >>> On 17 Apr 2007 13:32:52 GMT, Antoon Pardon <[EMAIL PROTECTED]> wrote: On 2007-04-17, Hendrik van Rooyen <[EMAIL PROTECTED]> wrote: [snip] >>> > Not sure I understand this - it sounds vaguely incestous to me. > I normally use a GUI with two queues, one for input, one for > output, to two threads that front end two named pipes to > the next process - I try to avoid more than one thing reading or > writing to one end of a queue or a pipe, so the dataflow diagram > for my stuff always looks like a TinkerToy... The problem is that sometimes the gui thread has something to show too. With the added problem that the code wanting to show something doesn't know when it is executing the gui thread or an other. So it is very difficult to avoid the gui thread putting things on the queue. But since the gui thread is the single reader, it will dead lock if the queue happens to be full at the moment the gui thread want to add another item. >>> >>> This is pretty easily solved: >>> >>> def sendToGUI(event): >>> if isInGUIThread(): >>> gui.scheduleCall(event) >>> else: >>> guiQueue.put(event) >> >>No that is not a solution for the simple reason that now things >>can be shown out of order. Suppose I have a thread that shows >>the value of a certain variable. Now I have a button that can >>stop this thread and zero the variable. If I go for your >>solution a value may still be in the queue and my window >>ends up showing this last value instead of zero. >> > > Addressing that is up to the application code. Threading is tough, > there are no magic bullets. The above is a very standard tool for > addressing the concern raised earlier in this thread. It's only > *part* of a solution though, the rest of the application has to play > along. My solution is a more complete implementation of Queues, which allow a thread to register as reader, writer or reader-writer. Reader-writers are always allowed to put an element in the queue even if it is "full". Since the Reader-writer will typically only put things on the queue as a result of user interaction, the queue wont grow too large anyway. -- Antoon Pardon -- http://mail.python.org/mailman/listinfo/python-list
