Re: New to Python

On Wed, Feb 10, 2010 at 2:21 AM, Quin wrote: > Well, PyScripter works find with that code. Furthermore, the > un-intellisense in IronPython was problematic, inserting the wrong things, > which I had to erase. > I think you're confused and are comparing apples to oranges. To define a couple term

Re: Creating formatted output using picture strings

On Wed, Feb 10, 2010 at 12:19 PM, sstein...@gmail.com wrote: > On Feb 10, 2010, at 2:57 PM, Grant Edwards wrote: >> On 2010-02-10, pyt...@bdurham.com wrote: >> >> [regardning "picture" output format specifiers] >> >>> I was thinking that there was a built-in function for this >>> common(?) use ca

Re: A silly question on file opening

On Wed, 10 Feb 2010 12:42:17 -0800, joy99 wrote: > I tried to change the location to D:\file and as I saw in Python Docs > the file reading option is now "r+" so I changed the statement to >file_open=open("D:\file","r+") > but it is still giving error. You should copy and paste (do not re-ty

Re: "if {negative}" vs. "if {positive}" style

On Wed, Feb 10, 2010 at 3:56 PM, Ethan Furman wrote: > Tim Chase wrote: >> >> Any thoughts on how others make the choice? >> >> -tkc > > If one branch is only a few lines, it comes first.  As often as not, that > tiny branch is checking for errors, and the "else" branch doesn't need to be > indent

Re: Need debugging knowhow for my creeping Unicodephobia

On Wed, Feb 10, 2010 at 1:03 PM, kj wrote: > >What are y and z? > > x = "%s %s" % (table['id'], table.tr.renderContents()) > > where the variable table represents a BeautifulSoup.Tag instance. > > >Are they unicode or strings? > > The first item (table['id']) is unicode, and the second is str.

Re: Function attributes

Steven D'Aprano writes: > On Wed, 10 Feb 2010 18:31:23 +, Arnaud Delobelle wrote: > >> It's not ideal, but you can use a decorator like this to solve this >> problem: >> >> def bindfunction(f): >> def bound_f(*args, **kwargs): >> return f(bound_f, *args, **kwargs) >> bound_f.

Re: Need debugging knowhow for my creeping Unicodephobia

On Wed, Feb 10, 2010 at 1:03 PM, kj wrote: > In <402ac982-0750-4977-adb2-602b19149...@m24g2000prn.googlegroups.com> Jonathan Gardner writes: >>It sounds like someone, probably beautiful soup, is trying to turn >>your strings into unicode. A full stacktrace would be useful to see >>who did what w

Re: Function attributes

En Wed, 10 Feb 2010 10:59:41 -0300, Muhammad Alkarouri escribió: What is the simplest way to access the attributes of a function from inside it, other than using its explicit name? In a function like f below: def f(*args): f.args = args print args is there any other way? See this:

Re: Modifying Class Object

On Wed, 10 Feb 2010 21:02:14 +0100, Alf P. Steinbach wrote: > "pointer" refers to a copyable reference value as seen from the Python > level, in the same way as "pointer" is used by e.g. the Java language > spec. Python doesn't have "copyable reference values" in the Python level. It has objects

Re: Function attributes

MRAB writes: > Does this mean that Python needs, say, __function__ (and perhaps also > __module__)? See PEP 3130 "Access to Current Module/Class/Function" (rejected) (http://www.python.org/dev/peps/pep-3130/) -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list

Re: "if {negative}" vs. "if {positive}" style (was: New to Python)

On Feb 9, 7:36 pm, Tim Chase wrote: > Larry Hudson wrote: > > But a minor rearrangement is simpler, and IMHO clearer: > > > if 'mystring' not in s: > >      print 'not found' > > else: > >      print 'foundit' > >      print 'processing' > > I've always vacillated on whether that would better be w

Re: Creating formatted output using picture strings

On 2/10/2010 2:57 PM, Grant Edwards wrote: On 2010-02-10, pyt...@bdurham.com wrote: [regardning "picture" output format specifiers] I was thinking that there was a built-in function for this common(?) use case I haven't seen that paradigm since my one-and-only exposure to COBOL in a class I

Re: New to Python

On Wed, 2010-02-10 at 13:18 -0800, Stephen Hansen wrote: > > The original code: > > > s = f.readline() > if 'mystring' in s: print 'foundit' > if 'mystring' not in s: print 'not found' > if 'mystring' in s: > print 'processing' > > > ... will only work on Python 2.x, as print is being used

Re: Modifying Class Object

* Steve Holden: Alf P. Steinbach wrote: [snip] Since in the quoting above no reference to definition of "pointer" remains: "pointer" refers to a copyable reference value as seen from the Python level, in the same way as "pointer" is used by e.g. the Java language spec. [snip] If so, then t

Re: Modifying Class Object

* Ethan Furman: Steven D'Aprano wrote: Believe me Alf, the fact that people are taking the time to try to argue with you instead of just kill-filing you is a compliment. It's a compliment I am not paying, although I am grateful to those who are attempting to teach him. At the rate it's goi

Re: Modifying Class Object

On 2/10/2010 1:38 PM, Ethan Furman wrote: After all is said and done - if you had a truly good grasp of Python, I might buy your book even if you still had -- ummm -- a less than winning presence on the mailing list; but right now your understanding is not worth paying for. Alf, here's my sug

SimpleXMLRPCServer and client address

I'm trying to right a server that needs specific information for each client accessing it. The easiest way I could think of doing this is keeping this information based on ip address (the information is only valid for a short time). I know there is no was to get the client's address directly and

strange issue with C extension using Py_BuildValue

I'm am having "strange" problems with the code snip below. When this code is built on a 64bit Linux, it would appear to work flawlessly.When the source is rebuilt on a 32bit Linux it begins to crack in strange ways. The issue seems to be associated with the sender field in the Py_BuildValue

Re: intolerant HTML parser

In message <4b712919$0$6584$9b4e6...@newsspool3.arcor-online.net>, Stefan Behnel wrote: > Usually PyPI. Where do you think these tools come from? They don’t write themselves, you know. -- http://mail.python.org/mailman/listinfo/python-list

Re: How to measure elapsed time under Windows?

En Wed, 10 Feb 2010 13:15:22 -0300, Grant Edwards escribió: On 2010-02-09, Gabriel Genellina wrote: En Tue, 09 Feb 2010 13:10:56 -0300, Grant Edwards escribi?: What's the correct way to measure small periods of elapsed time. I've always used time.clock() in the past: However on multi-proc

Re: How to measure elapsed time under Windows?

On 2010-02-09, Gabriel Genellina wrote: > In code, using SetProcessAffinityMask and related functions: > http://msdn.microsoft.com/en-us/library/ms686223(VS.85).aspx That solves the problem. If I don't set the process affinity mask, I regularly get measurements that are off by 6ms. I presume 6

Re: Modifying Class Object

* Steven D'Aprano: On Wed, 10 Feb 2010 21:02:14 +0100, Alf P. Steinbach wrote: "pointer" refers to a copyable reference value as seen from the Python level, in the same way as "pointer" is used by e.g. the Java language spec. Python doesn't have "copyable reference values" in the Python level

Re: Executing Commands From Windows Service

On Feb 9, 4:25 pm, David Bolen wrote: > David Bolen writes: > > Not from my past experience - the system account (LocalSystem for > > services) can be surprising, in that it's pretty much unlimited access > > to all local resources, but severely limited in a handful of cases, > > one of which is

Re: Need debugging knowhow for my creeping Unicodephobia

On Wed, 2010-02-10 at 12:17 -0800, Anthony Tolle wrote: > On Feb 10, 2:09 pm, kj wrote: > > Some people have mathphobia. I'm developing a wicked case of > > Unicodephobia. > > [snip] > > Some general advice (Looks like I am reiterating what MRAB said -- I > type slower :): > > 1. If possible, u

Re: Modifying Class Object

On Wed, 10 Feb 2010 23:02:27 +0100, Alf P. Steinbach wrote: > For a less likely more technical interpretation, as far as I know in > Python there's just one case of a pointer that does not point to > anything, namely as exemplified by > > def foo(): > print( x ) > x = "whateve

Is a merge interval function available?

I'm wondering there is already a function in python library that can merge intervals. For example, if I have the following intervals ('[' and ']' means closed interval as in http://en.wikipedia.org/wiki/Interval_(mathematics)#Excluding_the_endpoints) [1, 3] [2, 9] [10,13] [11,12] I want to get th

Re: Modifying Class Object

* Steven D'Aprano: On Wed, 10 Feb 2010 23:02:27 +0100, Alf P. Steinbach wrote: For a less likely more technical interpretation, as far as I know in Python there's just one case of a pointer that does not point to anything, namely as exemplified by def foo(): print( x ) x =

Re: Python Logic Map/Logic Flow Chart. (Example Provided)

On Tue, 09 Feb 2010 07:35:51 -, Gary Herron wrote: spike wrote: On Feb 8, 1:35 pm, Gary Herron wrote: spike wrote: Has anyone been able to come across a Python logic map or Python logic flow chart? An example can be seen on the right under History: http://en.wikipedia.org/wiki

sqlite3 bug?

When the method below is run it raises 'sqlite3.OperationalError: no such table: dave'. the arguments are ds = a datestamp and w = a string of digits. The path of the db is C:\sv_zip_test\2006\2006.db and the table is definitely named dave. I've run the sql in sql manager and it works. Is this a bu

Re: Is a merge interval function available?

On Wed, 10 Feb 2010 15:23:42 -0800, Peng Yu wrote: > I'm wondering there is already a function in python library that can > merge intervals. For example, if I have the following intervals ('[' and > ']' means closed interval as in > http://en.wikipedia.org/wiki/Interval_(mathematics) #Excluding_th

Re: sqlite3 bug?

dads wrote: When the method below is run it raises 'sqlite3.OperationalError: no such table: dave'. the arguments are ds = a datestamp and w = a string of digits. The path of the db is C:\sv_zip_test\2006\2006.db and the table is definitely named dave. I've run the sql in sql manager and it works

Get __doc__ from main module in imported module.

I have a module toolkit.py with some functions I use often. One of these functions displays a usage message (__doc__). def usage(messages=[], exit=-1): """Print the doc string as wells as any useful messages.""" print(__doc__) for message in messages: print("\033[91m{}\033[0m"

Re: Need debugging knowhow for my creeping Unicodephobia

In Duncan Booth writes: >kj wrote: >> But to ground >> the problem a bit I'll say that the exception above happens during >> the execution of a statement of the form: >> >> x = '%s %s' % (y, z) >> >> Also, I found that, with the exact same values y and z as above, >> all of the following

question on storing dates in a tuple

Hi, I have a weird question about tuples. I am getting some dates from a mysql db, using the mysqldb interface. I am doing a standard query with several of the fields are "datetime" format in mysql. When I retrieve and print them in python, they look fine. eg. storeddate = 2010-02-07 12:03:41

Re: strange issue with C extension using Py_BuildValue

On 11/02/2010 9:19 AM, bobicanprogram wrote: I'm am having "strange" problems with the code snip below. When this code is built on a 64bit Linux, it would appear to work flawlessly.When the source is rebuilt on a 32bit Linux it begins to crack in strange ways. The issue seems to be associ

Re: Get __doc__ from main module in imported module.

* David: I have a module toolkit.py with some functions I use often. One of these functions displays a usage message (__doc__). def usage(messages=[], exit=-1): """Print the doc string as wells as any useful messages.""" print(__doc__) for message in messages: print("\033[91

Re: question on storing dates in a tuple

On Wed, Feb 10, 2010 at 5:17 PM, m_ahlenius wrote: > Hi, > > I have a weird question about tuples.  I am getting some dates from a > mysql db, using the mysqldb interface.  I am doing a standard query > with several of the fields are "datetime" format in mysql. > When I retrieve and print them in

Re: SimpleXMLRPCServer and client address

Jordan Apgar wrote: I'm trying to right a server that needs specific information for each client accessing it. The easiest way I could think of doing this is keeping this information based on ip address (the information is only valid for a short time). I know there is no was to get the client's

Re: question on storing dates in a tuple

On Thu, 11 Feb 2010 01:17:17 -, m_ahlenius wrote: Hi, I have a weird question about tuples. I am getting some dates from a mysql db, using the mysqldb interface. I am doing a standard query with several of the fields are "datetime" format in mysql. When I retrieve and print them in pytho

ignoring some placeholders in string formatting

Hi all, when I've got a string, say: URL="http://xyz/blah?session=%(session)s&message=%(message)s" is it possible to fill in only 'session' and leave "%(message)s" as is when it isn't present in the values dict? For example: URL % { 'session' : 123 } raises KeyError because of missing 'message'

Re: ignoring some placeholders in string formatting

Michal Ludvig wrote: URL="http://xyz/blah?session=%(session)s&message=%(message)s" is it possible to fill in only 'session' and leave "%(message)s" as is when it isn't present in the values dict? For example: URL % { 'session' : 123 } raises KeyError because of missing 'message' in the dict. I

Re: ignoring some placeholders in string formatting

On Thu, 11 Feb 2010 14:25:10 +1300, Michal Ludvig wrote: > Hi all, > > when I've got a string, say: > > URL="http://xyz/blah?session=%(session)s&message=%(message)s" > > is it possible to fill in only 'session' and leave "%(message)s" as is > when it isn't present in the values dict? No, but i

Re: Get __doc__ from main module in imported module.

> > How can I access the top level module's doc string from toolkit? > > Like > >      import __main__ >      print_usage( __main__ ) > > with suitable definition of 'usage'. > > Cheers & hth., > > - Alf Problem solved! Thanks for the other tips too. -- http://mail.python.org/mailman/listinfo/pyt

Re: ignoring some placeholders in string formatting

Michal Ludvig wrote: Hi all, when I've got a string, say: URL="http://xyz/blah?session=%(session)s&message=%(message)s" is it possible to fill in only 'session' and leave "%(message)s" as is when it isn't present in the values dict? For example: URL % { 'session' : 123 } raises KeyError becau

Re: Modifying Class Object

Alf P. Steinbach wrote: > * Ethan Furman: >> Steven D'Aprano wrote: >>> >>> Believe me Alf, the fact that people are taking the time to try to >>> argue with you instead of just kill-filing you is a compliment. >> >> It's a compliment I am not paying, although I am grateful to those who >> are atte

FWD: Lore about Division

Alan: 2^(1/2) Kirby: Also pow(2, 0.5) in Python. Alan: Gee, I wonder if pow(2, (1/2)) also works in Python? Kirby: It does if you remember integer division in earlier versions, such that one needed: from __future__ import division or, simply made it 1./2 or 1/2. or something, to force a floa

Re: Dreaming of new generation IDE

catonano wrote: > You know what I'm doing now ? I'm drawing the map of > twisted.web.client on a paper with a pencil :-( You're a programmer. Why are you complaining about the problem instead of endeavouring to solve it? -- http://mail.python.org/mailman/listinfo/python-list

Re: Function attributes

On 2/10/2010 4:49 PM, Gabriel Genellina wrote: I've written a decorator for "injecting" a __function__ name into the function namespace, but I can't find it anywhere. I think I implemented it by adding a fake additional argument and replacing LOAD_GLOBAL with LOAD_NAME in the bytecode. The dec

Re: Modifying Class Object

* Steve Holden: So now the whole thing boils down to "Alf against the world"? The reminds me of the story about the woman who went to see her son qualify from his basic army training. When asked what she thought of the parade she said it was very nice, but that "everyone but our Alf was out of s

Re: A silly question on file opening

On Wed, 10 Feb 2010 21:23:08 +, Steven D'Aprano wrote: > The solution to this is to remember that Windows accepts forward slashes > as well as backslashes, and always use the forward slash. So try: > > open("D:/file") > > and see if that works. The solution is not to hard-code pathnames i

expy 0.6 released

Hi: EXPY (http://expy.sourceforge.net/) is an express way to extend Python. Why consider expy? Here are some good reasons: (I). WYSIWYG. The expy project enables you to write your module in Python the way your extension would be (WYSIWYG), and meanwhile write your implementation in pure C. Yo

Re: Is a merge interval function available?

On Wed, 10 Feb 2010 15:23:42 -0800, Peng Yu wrote: > I'm wondering there is already a function in python library that can > merge intervals. For example, if I have the following intervals ('[' > and ']' means closed interval as in > http://en.wikipedia.org/wiki/Interval_(mathematics)#Excluding_the

Re: Modifying Class Object

Alf P. Steinbach wrote: > * Steve Holden: >> Alf P. Steinbach wrote: > [snip] >>> >>> Since in the quoting above no reference to definition of "pointer" >>> remains: "pointer" refers to a copyable reference value as seen from the >>> Python level, in the same way as "pointer" is used by e.g. the Ja

Re: SimpleXMLRPCServer and client address

On Wed, Feb 10, 2010 at 5:36 PM, Jean-Michel Pichavant < jeanmic...@sequans.com> wrote: > I don't know exactly what you are trying to do, but if your server requires > informations from the client, it would be better to ask explicitly the > client for those informations. > For instance, if a metho

Re: Is a merge interval function available?

Nobody wrote: > On Wed, 10 Feb 2010 15:23:42 -0800, Peng Yu wrote: > >> I'm wondering there is already a function in python library that can >> merge intervals. For example, if I have the following intervals ('[' >> and ']' means closed interval as in >> http://en.wikipedia.org/wiki/Interval_(math

Re: Modifying Class Object

On Wed, Feb 10, 2010 at 7:49 PM, Steve Holden wrote: > *The* standard general language independent definition? As defined where? > Wait, what happened here? This thread started a couple days ago; you pointed out its futility, and even knowing better, I jumped in the deep end. When I realized th

Re: Modifying Class Object

Alf P. Steinbach wrote: > * Steve Holden: >> >> So now the whole thing boils down to "Alf against the world"? The >> reminds me of the story about the woman who went to see her son qualify >> from his basic army training. When asked what she thought of the parade >> she said it was very nice, but t

Re: Modifying Class Object

Stephen Hansen wrote: > On Wed, Feb 10, 2010 at 7:49 PM, Steve Holden > wrote: > > *The* standard general language independent definition? As > defined where? > > > Wait, what happened here? > > This thread started a couple days ago; you pointed out its fu

Re: Is a merge interval function available?

On Wed, Feb 10, 2010 at 5:23 PM, Peng Yu wrote: > I'm wondering there is already a function in python library that can > merge intervals. > Not in the standard library, but this package may help: http://pypi.python.org/pypi/interval -- Daniel Stutzbach, Ph.D. President, Stutzbach Enterprises,

Re: Modifying Class Object

* Steve Holden: Alf P. Steinbach wrote: * Steve Holden: Alf P. Steinbach wrote: [snip] Since in the quoting above no reference to definition of "pointer" remains: "pointer" refers to a copyable reference value as seen from the Python level, in the same way as "pointer" is used by e.g. the Jav

RE: Modifying Class Object

Steve wrote: > id() simply returns a unique value identifying a particular object. In > CPython, where objects do not migrate in memory once created, the > memory > address of the object is used. In IronPython each object is assigned an > id when it is created, and that value is stored as an attrib

Re: Modifying Class Object

* Steve Holden: Alf P. Steinbach wrote: * Steve Holden: So now the whole thing boils down to "Alf against the world"? The reminds me of the story about the woman who went to see her son qualify from his basic army training. When asked what she thought of the parade she said it was very nice, bu

Re: I've built Python, but can't figure out how to package it for windows

Turns out there is an tools/msi directory and in there is python code to help build the MSI from the tree you built. Only problem is you can't use it without having python and PythonWin installed. So I grabbed 2.6.4 python and pythonwin and installed them. It uses COM objects and the CabSDK from M

regex to match python string literal syntax

I found this: http://code.activestate.com/recipes/475109/ But it is incorrect in some cases, such as: * "foo \" bar"* / (incorrectly matches "foo \")/ * '''* /(incorrectly matches the second two single quotes)/ *" foo bar "* / (incorrectly matches quote containing newline/) Anyone kno

Re: SocketServer error: AttributeError: instance has no __call__ method

En Wed, 10 Feb 2010 17:13:58 -0300, Jordan Apgar escribió: I'm having some issues connecting to my Socket Server, I get this traceback on the sever side: Exception happened during processing of request from ('127.0.0.1', 56404) Traceback (most recent

Re: SimpleXMLRPCServer and client address

En Wed, 10 Feb 2010 19:19:50 -0300, Jordan Apgar escribió: I'm trying to right a server that needs specific information for each client accessing it. The easiest way I could think of doing this is keeping this information based on ip address (the information is only valid for a short time).

Re: Modifying Class Object

On Wed, 10 Feb 2010 23:56:36 +0100, Alf P. Steinbach wrote: > * Steven D'Aprano: >> On Wed, 10 Feb 2010 21:02:14 +0100, Alf P. Steinbach wrote: >> >>> "pointer" refers to a copyable reference value as seen from the Python >>> level, in the same way as "pointer" is used by e.g. the Java language >

Re: Modifying Class Object

"Alf P. Steinbach" wrote: > Telling someone to "learn to read" is a Steve Holden'sk way to imply that the > person is an ignoramus who hasn't bothered to learn to read. Ad hominem. > So, you > are misrepresenting  --  again  --  and in a quite revealing way, sorry. Ad hominem. > Yes, in this g

Re: regex to match python string literal syntax

Found this in pypy! # Match any flavor of string; /*the terminating quote is optional*/ # so that we're robust in the face of incomplete program text. _match_stringre = re.compile(r""" \""" [^"\\]* (?: (?: \\. | "(?!"") ) [^"\\]* )* (

Re: Modifying Class Object

* Steven D'Aprano: On Wed, 10 Feb 2010 23:56:36 +0100, Alf P. Steinbach wrote: * Steven D'Aprano: On Wed, 10 Feb 2010 21:02:14 +0100, Alf P. Steinbach wrote: "pointer" refers to a copyable reference value as seen from the Python level, in the same way as "pointer" is used by e.g. the Java la

Re: Modifying Class Object

* alex23: "Alf P. Steinbach" wrote: Telling someone to "learn to read" is a Steve Holden'sk way to imply that the person is an ignoramus who hasn't bothered to learn to read. Ad hominem. So, you are misrepresenting -- again -- and in a quite revealing way, sorry. Ad hominem. Yes, in

Re: Modifying Class Object

On Thu, 11 Feb 2010 07:37:35 +0100, Alf P. Steinbach wrote: > * Steven D'Aprano: >> s = [1] >> t = s # Binds the name t to the object bound to the name s. >> t[0] = 2 # Changes the object bound to the name t print(s) # >> Checks the object via the original name. >> >> Notice that

Re: ANN: obfuscate

Christian Heimes wrote: A much, much stronger version of the principles behind Vigenère was used in the German Enigma machine. Because the algorithm was still not good enought some clever guy called Turing and his team was able to crack the enigma. Actually I gather it had a lot to do with the

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