How do I set a callback in Python?
I can't for the life of me figure out how to set a callback in
Python. I have a class, which wraps another class. The second class
needs a callback assigned. I don't want to use globals for it.
Here's what I'd like to do:
class MyWrapper:
def get_login(self, username):
return self.user, self.pass
def __init__(self, user, pass):
self.user = user
self.pass = pass
self.client = Client("connection string")
self.client.callback_login = get_login
... but obviously, the Client class, when it calls the callback,
doesn't pass a reference to the "self" object. How do I do this?
-- Chris
--
http://mail.python.org/mailman/listinfo/python-list
Re: How do I set a callback in Python?
catsclaw wrote in news:d797403a-e492-403f-933a-bd18ef53d5c0
@k13g2000hse.googlegroups.com in comp.lang.python:
> I can't for the life of me figure out how to set a callback in
> Python. I have a class, which wraps another class. The second class
> needs a callback assigned. I don't want to use globals for it.
> Here's what I'd like to do:
>
> class MyWrapper:
> def get_login(self, username):
> return self.user, self.pass
>
> def __init__(self, user, pass):
> self.user = user
> self.pass = pass
>
> self.client = Client("connection string")
> self.client.callback_login = get_login
>
> ... but obviously, the Client class, when it calls the callback,
> doesn't pass a reference to the "self" object. How do I do this?
use:
self.client.callback_login = self.get_login
Rob.
--
http://www.victim-prime.dsl.pipex.com/
--
http://mail.python.org/mailman/listinfo/python-list
Re: How do I set a callback in Python?
catsclaw schrieb:
I can't for the life of me figure out how to set a callback in
Python. I have a class, which wraps another class. The second class
needs a callback assigned. I don't want to use globals for it.
Here's what I'd like to do:
class MyWrapper:
def get_login(self, username):
return self.user, self.pass
def __init__(self, user, pass):
self.user = user
self.pass = pass
self.client = Client("connection string")
self.client.callback_login = get_login
... but obviously, the Client class, when it calls the callback,
doesn't pass a reference to the "self" object. How do I do this?
Do self.get_login. The difference is that this creates a so-called
"bound method". Google for that, and play around in the interpreter with
an object and references to it's methods, either through the class or
the instance to see the difference.
Diez
--
http://mail.python.org/mailman/listinfo/python-list
Re: How do I set a callback in Python?
catsclaw wrote:
I can't for the life of me figure out how to set a callback in
Python. I have a class, which wraps another class. The second class
needs a callback assigned. I don't want to use globals for it.
Here's what I'd like to do:
class MyWrapper:
def get_login(self, username):
return self.user, self.pass
def __init__(self, user, pass):
self.user = user
self.pass = pass
self.client = Client("connection string")
self.client.callback_login = get_login
Make that list line:
self.client.callback_login = self.get_login
Then you are passing a "bound" method (meaning bound to a particular instance).
The client class calls its callback_login as a normal function with parameters,
and the Wrapper get_login will be called on the proper instance of MyWrapper.
This is a very common thing for many uses, including callbacks.
Hoping I understood what you wanted correctly,
Gary Herron
... but obviously, the Client class, when it calls the callback,
doesn't pass a reference to the "self" object. How do I do this?
-- Chris
--
http://mail.python.org/mailman/listinfo/python-list
--
http://mail.python.org/mailman/listinfo/python-list
Re: Spotlight Searching in Python - Mac OSX
[EMAIL PROTECTED] schrieb:
Hi all, I'm having some issues getting a spotlight search to work
similar to the program demonstrated here:
http://pyobjc.sourceforge.net/examples/pyobjc-framework-Cocoa/AppKit/PredicateEditorSample/
Here is my class, complete with the code I am trying to use it with at
the end.
import objc, sys, os, osax, time
from Foundation import *
from ScriptingBridge import *
from appscript import *
class SystemBridge(NSObject):
"""Class to use the scripting bridge to interact with the system"""
_hideapp = objc.ivar(u"hideapp")
_volume = objc.ivar(u"volume")
_filename = objc.ivar(u"filename")
_filetype = objc.ivar(u"filetype")
_auth = objc.ivar(u"auth")
_logout = objc.ivar(u"logout")
query = objc.ivar(u"query")
StdAdditions = osax.ScriptingAddition()
def init(self):
super(SystemBridge, self).init()
# create and initalize our query
self.query = NSMetadataQuery.alloc().init()
# setup our Spotlight notifications
nf = NSNotificationCenter.defaultCenter()
nf.addObserver_selector_name_object_(self,
'queryNotification:', None, self.query)
# XXX: this framework isn't wrapped yet!
self.query.setSortDescriptors_([NSSortDescriptor.alloc().initWithKey_ascending_('kMDItemDisplayName',
True)])
self.query.setDelegate_(self)
return self
def hideApplication_(self, _hideapp):
app(u'System Events').processes[_hideapp].visible.set(False)
def loadResultsFromQuery_(self, notif):
results = notif.object().results()
NSLog("search count = %d", len(results))
# iterate through the array of results, and match to the
existing stores
for item in results:
nameStr = item.valueForAttribute_('kMDItemDisplayName')
print nameStr
def queryNotification_(self, note):
# the NSMetadataQuery will send back a note when updates are
happening.
# By looking at the [note name], we can tell what is happening
if note.name() ==
NSMetadataQueryDidStartGatheringNotification:
# the query has just started
NSLog("search: started gathering")
elif note.name() ==
NSMetadataQueryDidFinishGatheringNotification:
# at this point, the query will be done. You may recieve
an update
# later on.
NSLog("search: finished gathering");
self.loadResultsFromQuery_(note)
elif note.name() ==
NSMetadataQueryGatheringProgressNotification:
# the query is still gathering results...
NSLog("search: progressing...")
elif note.name() == NSMetadataQueryDidUpdateNotification:
# an update will happen when Spotlight notices that a file
as
# added, removed, or modified that affected the search
results.
NSLog("search: an update happened.")
def spotlightFriendlyPredicate_(self, predicate):
if predicate == NSPredicate.predicateWithValue_(True) or
predicate == NSPredicate.predicateWithValue_(False):
return False
elif isinstance(predicate, NSCompoundPredicate):
type = predicate.compoundPredicateType()
cleanSubpredicates = []
for dirtySubpredicate in predicate.subpredicates():
cleanSubpredicate =
self.spotlightFriendlyPredicate_(
dirtySubpredicate)
if cleanSubpredicate:
cleanSubpredicates.append(cleanSubpredicate)
if len(cleanSubpredicates) == 0:
return None
else:
if len(cleanSubpredicates) == 1 and type !=
NSNotPredicateType:
return cleanSubpredicates[0]
else:
return
NSCompoundPredicate.alloc().initWithType_subpredicates_(type,
cleanSubpredicates)
else:
return predicate
def createNewSearchForPredicate_(self, predicate):
# Format search file type
thePredicate = NSPredicate.predicateWithFormat_(
"(kMDItemContentType =
'com.apple.iwork.keynote.key')")
tempPredicate = NSPredicate.predicateWithFormat_(
"(kMDItemDisplayName IN[c] 'preso')")
predicate = NSCompoundPredicate.andPredicateWithSubpredicates_(
[thePredicate, tempPredicate])
Hey guys!
hey guys! I have this site www.drachensee.info and i keep posting on the ubuntu, the latest open soruce buzz.. i post on stuff like editing the grub menu and other linux related stuff.. so drop in and drop ur comments ;-] -- http://mail.python.org/mailman/listinfo/python-list
Re: [ANN] pysqlite 2.5.0 released
Matthias Huening wrote:
Hi,
- - Connection.enable_load_extension(enabled) to allow/disallow extension
loading. Allows you to use fulltext search extension, for example ;-)
The following code (from the docs) produces an error:
from pysqlite2 import dbapi2 as sqlite3
con = sqlite3.connect(":memory:")
# Load the fulltext search extension
con.enable_load_extension(True)
con.execute("select load_extension('./fts3.so')")
con.enable_load_extension(False)
Error is:
con.execute("select load_extension('./fts3.so')")
pysqlite2._sqlite.OperationalError: Das angegebene Modul wurde nicht
gefunden.
Where should I look for the module?
The sources are in ext/fts3 in the SQLite source tree. I haven't found
any Makefile, so I it myself using this gcc command:
$ cd .../ext/fts3
$ gcc -shared -o ~/src/gh/pysqlite/build/lib.linux-i686-2.5/fts3.so *.c
-lsqlite3
-- Gerhard
--
http://mail.python.org/mailman/listinfo/python-list
String to hexadecimal conversion
Hi folks, I am new to Python... so am not too sure about how the type conversion works. I have to read a file that contains hexadecimal data and use the data further to do some arithmetic calculations. A sample of the input is : 20E032F8400022005E The problem I am facing is this: I am using f.read(2) to read a byte at a time, but the data that is read is a string rather than a number. So it kind of hampers any arithmetic operations I perform on this data... Could you please suggest some method I could use for this? Thanks guys! Praveena -- http://mail.python.org/mailman/listinfo/python-list
Re: Updating python dictionary
On Sep 8, 10:47 am, MK Bernard <[EMAIL PROTECTED]> wrote:
> On Sep 7, 3:37 pm, John Machin <[EMAIL PROTECTED]> wrote:
>
>
>
>
>
> > On Sep 8, 7:51 am, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
>
> > > Hello...
>
> > > I have a dict of key/values and I want to change the keys in it, based
> > > on another mapping dictionary. An example follows:
>
> > > MAPPING_DICT = {
> > > 'a': 'A',
> > > 'b': 'B',
>
> > > }
>
> > > my_dict = {
> > > 'a': '1',
> > > 'b': '2'
>
> > > }
>
> > > I want the finished my_dict to look like:
>
> > > my_dict = {
> > > 'A': '1',
> > > 'B': '2'
>
> > > }
>
> > > Whereby the keys in the original my_dict have been swapped out for the
> > > keys mapped in MAPPING_DICT.
>
> > > Is there a clever way to do this, or should I loop through both,
> > > essentially creating a brand new dict?
>
> > Is this homework?
>
> > There seems to be an implicit assumption in the answers so far that
> > your mapping is a 1:1 mapping of all possible input keys.
>
> > If it doesn't include all possible input keys, answers will crash with
> > a KeyError. If there are any many:1 elements in the mapping (for
> > example, {'a': 'A', 'b': 'A'}), lossage happens. You may wish to code
> > in some checks for this.
>
> Thats exactly why I did an explicit check in my post, so as to make
> sure that such a collision could not occur. It would seem that
> something along what I posted would be safer, if less elegant, than
> the others.
I noted two problems:
(1) not covering all input keys: your code explicitly sweeps this
problem under the carpet, and does it laboriously ...
if x in my_dict.keys():
instead of
if x in my_dict:
(2) not a 1:1 mapping -- for example, 'a' and 'b' both map to 'A' (the
only "collision" that I can see), but you don't address that.
Here's some code which attempts to cover the bases:
new_dict = {}
for key in my_dict:
if key not in MAPPING_DICT:
raise NoMapError('blah %r' % key)
else:
new_key = MAPPING_DICT[key]
if new_key in new_dict:
raise ManyToOneError('gurgle %r waffle %r' % (key, new_key))
else:
new_dict[new_key] = my_dict[key]
Having considered what is actually required under the checked-for
conditions, one or both raise statements may be replaced by other
code, and then simplified e.g. the first 4 lines in the loop may end
up being replaced by
new_key = MAPPING_DICT.get(key, key)
as already suggested by one respondent.
Note that useful use-cases for any variety of this key-change exercise
may have many more items in MAPPING_DICT than there are in my_dict (a
big language dictionary and a few fragments of text to be
"translated"), or vice versa (a small synonym dictionary (color ->
colour, center -> centre) and a big input to be "standardised") so
it's a good idea to inquire which is likely to be the smaller and
iterate over that if the requirements permit it.
--
http://mail.python.org/mailman/listinfo/python-list
Re: universal unicode font for reportlab
Laszlo Nagy <[EMAIL PROTECTED]> writes: > I could not find any free TTF font that can do latin1, latin2, > arabic, chinese and other languages at the same time. Is there a > single font that is able to handle these languages? The GNU Unifont http://en.wikipedia.org/wiki/GNU_Unifont> http://unifoundry.com/unifont.html> covers an impressive range of the Unicode Basic Multilingual Plane. Unifont is originally a bitmap font, but was recently made available in TrueType format http://www.lgm.cl/trabajos/unifont/index.en.html>. Both are available in Debian 'lenny'; the 'unifont' and 'ttf-unifont' packages, respectively. -- \“Science doesn't work by vote and it doesn't work by | `\authority.” —Richard Dawkins, _Big Mistake_ (The Guardian, | _o__) 2006-12-27) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Syntax Problem with strptime in Python 2.4
Apparently, use of strptime of datetime needs a workaround in Python 2.4 to
work properly. The workaround is d =
datetime.datetime(*(time.strptime(date_string, format)[0:5])). However, when
I try to use it, or even use it the regular way, it fails with
AttributeError: type object 'datetime.datetime' has no attribute 'datetime'.
From the following code code segment:
format = '%Y%m%d_%H%M%S'
#d=datetime.strptime('20080321_113405', format)-- typical use
print time.strptime('20080321_113405', format)[0:5]
d = datetime.datetime(*time.strptime('20080321_113405', format)[0:5])
Does anyone know how to make this work in 2.4? If not, is there a way to
achieve the same result?
--
W. eWatson
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
Web Page:
--
http://mail.python.org/mailman/listinfo/python-list
Re: [ANN] pysqlite 2.5.0 released
Gerhard Häring (08.09.2008 10:12):
Error is:
con.execute("select load_extension('./fts3.so')")
pysqlite2._sqlite.OperationalError: Das angegebene Modul wurde nicht
gefunden.
Where should I look for the module?
The sources are in ext/fts3 in the SQLite source tree. I haven't found
any Makefile, so I it myself using this gcc command:
$ cd .../ext/fts3
$ gcc -shared -o ~/src/gh/pysqlite/build/lib.linux-i686-2.5/fts3.so *.c
-lsqlite3
Thanks!
Will fts3 be integrated in the Python 2.6 release?
Matthias
--
http://mail.python.org/mailman/listinfo/python-list
Re: Updating python dictionary
On Sep 8, 9:14 am, "James Mills" <[EMAIL PROTECTED]> wrote: > On Mon, Sep 8, 2008 at 8:59 AM, John Machin <[EMAIL PROTECTED]> wrote: > > What do you mean by "this right"? Perhaps the Divine Right of OPs, > > managers, examiners, business analysts, etc never to give a complete > > spec up front and never to contemplate the consequences of Murphy's > > Law? > > Now you're being silly. > Only in so far as I followed the habit of OPs and suchlike by using "never" instead of "rarely". -- http://mail.python.org/mailman/listinfo/python-list
Re: Error importing mxTidy
On 2008-09-07 15:00, Mike Hostetler wrote: > I built and installed mx-experimental 3.0.0 from source and it seemed to go > fine. But when I try to import it, I get this: > > localhost% python -c "import mx.Tidy" > Traceback (most recent call last): > File "", line 1, in ? > File "mx/Tidy/__init__.py", line 7, in ? > from Tidy import * > File "mx/Tidy/Tidy.py", line 7, in ? > from mxTidy import * > File "mx/Tidy/mxTidy/__init__.py", line 7, in ? > from mxTidy import * > ImportError: No module named mxTidy > > This seems strange to me, since it found the mx.Tidy module but not the mxTidy > module underneath it. But I guess I don't know how the mx-experimental > classes > are put together, so I can't really guess what is happening. Thus I am > posting > here. :) Which platform are you using ? -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Sep 08 2008) >>> Python/Zope Consulting and Support ...http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ Try mxODBC.Zope.DA for Windows,Linux,Solaris,MacOSX for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 -- http://mail.python.org/mailman/listinfo/python-list
Unable to start a process with subprocess Popen()
Hi, I'm using the subprocess module's Popen() to start a batch file. This batch file basically calls an exe which also gets started. Unfortunately, this does not produce any results. I looked into the Task bar that this exe has started but it does not consume and cpu so I believet that this exe is not working. I used the following command to start the batch fiile: testing = subprocess.Popen([batchFilePath], \ shell = True, \ stdout = subprocess.PIPE, \ stderr = subprocess.PIPE).communicate()[0] batchFilePath is the path of the batch file. -- Regrads, Rajat -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax Problem with strptime in Python 2.4
>> Apparently, use of strptime of datetime needs a workaround in Python
>> 2.4 to work properly. The workaround is d =
>> datetime.datetime(*(time.strptime(date_string,
>> format)[0:5])). However, when I try to use it, or even use it the
>> regular way, it fails with AttributeError: type object
>> 'datetime.datetime' has no attribute 'datetime'.
Works for me:
>>> import datetime
>>> format = '%Y%m%d_%H%M%S'
>>> import time
>>> print time.strptime('20080321_113405', format)[0:5]
(2008, 3, 21, 11, 34)
>>> d = datetime.datetime(*time.strptime('20080321_113405', format)[0:5])
>>> d
datetime.datetime(2008, 3, 21, 11, 34)
Python 2.4.4, Mac OS X 10.5.4.
Skip
--
http://mail.python.org/mailman/listinfo/python-list
Re: String to hexadecimal conversion
On Sep 8, 2:31 pm, John Machin <[EMAIL PROTECTED]> wrote: > On Sep 8, 7:05 pm, Praveena P <[EMAIL PROTECTED]> wrote: > > > Hi folks, > > > I am new to Python... so am not too sure about how the type conversion > > works. > > > I have to read a file that contains hexadecimal data and use the data > > further to do some arithmetic calculations. > > A sample of the input is : 20E032F8400022005E > > The problem I am facing is this: > > I am using f.read(2) to read a byte at a time, but the data that is > > read is a string rather than a number. So it kind of hampers any > > arithmetic operations I perform on this data... > > > Could you please suggest some method I could use for this? > > *IF* all the data consists of unsigned 8-bit integers > a_byte = f.read(2) > uint8 = int(a_byte, 16) > > But I doubt it and that would be rather slow anyway. If your data is > homogenous, look at the array module. Otherwise, once you've worked > out how to break your file down into records, and what the layout of > each record is, you'll need the struct module. > > HTH, > John Hey John, Thanks! That was useful... I am still putting the code together with all the operations... will probably have loads more queries... :-) Have a good day! Praveena -- http://mail.python.org/mailman/listinfo/python-list
how to use execfile with input parameters
I have a Python script expecting 11 or 12 input parameters. How do I use execfile to execute the Python script in my new Python script? How do I pass in the input parameters? Yours sincerely, David This email has been scanned for all viruses by the MessageLabs Email Security System.-- http://mail.python.org/mailman/listinfo/python-list
Re: Unable to start a process with subprocess Popen()
On Mon, Sep 8, 2008 at 11:50 AM, <[EMAIL PROTECTED]> wrote: > Hi, > > I'm using the subprocess module's Popen() to start a batch file. This > batch file basically calls an exe which also gets started. > Unfortunately, this does not produce any results. I looked into the > Task bar that this exe has started but it does not consume and cpu so > I believet that this exe is not working. > > > I used the following command to start the batch fiile: > > testing = subprocess.Popen([batchFilePath], \ > shell = True, \ > stdout = subprocess.PIPE, \ > stderr = subprocess.PIPE).communicate()[0] > > > batchFilePath is the path of the batch file. > > > > -- > Regrads, > Rajat > Ok, I re-phrase my question: there is a batch file that executes a exe file. The batch just works if run from command prompt and produces output to standard output and the file. Now, I try to call the same batch file from subprocess.Pope() call. The batch file gets called and that internally also calls the exe file. But, the exe just runs forever i.e. hangs and does not produces output , atleast not to the file. Please suggest is there is something wrong with the above code. Regards, Rajat -- http://mail.python.org/mailman/listinfo/python-list
Re: [ANN] pysqlite 2.5.0 released
Matthias Huening wrote:
Gerhard Häring (08.09.2008 10:12):
Error is:
con.execute("select load_extension('./fts3.so')")
pysqlite2._sqlite.OperationalError: Das angegebene Modul wurde nicht
gefunden.
Where should I look for the module?
The sources are in ext/fts3 in the SQLite source tree. I haven't found
any Makefile, so I it myself using this gcc command:
$ cd .../ext/fts3
$ gcc -shared -o ~/src/gh/pysqlite/build/lib.linux-i686-2.5/fts3.so
*.c -lsqlite3
Thanks!
Will fts3 be integrated in the Python 2.6 release?
No (only relevant on win32, where we also ship the SQLite DLL). Neither
will be the ability to load extensions modules. It's just too late to
add features now.
But AFAIK it's possible to compile a custom SQLite with appropriate
flags to ./configure that will include the fulltext search extension.
-- Gerhard
--
http://mail.python.org/mailman/listinfo/python-list
Where does the command "ls" in some doctest files come from ?
Hi,
for example, in http://svn.zope.org/zc.buildout/trunk/src/zc/buildout/
tests.py?rev=89831&view=auto test file, there is this doctests :
def develop_verbose():
"""
We should be able to deal with setup scripts that aren't setuptools based.
>>> mkdir('foo')
>>> write('foo', 'setup.py',
... '''
... from setuptools import setup
... setup(name="foo")
... ''')
>>> write('buildout.cfg',
... '''
... [buildout]
... develop = foo
... parts =
... ''')
>>> print system(join('bin', 'buildout')+' -vv'), # doctest: +ELLIPSIS
Installing...
Develop: '/sample-buildout/foo'
...
Installed /sample-buildout/foo
...
>>> ls('develop-eggs')
- foo.egg-link
- zc.recipe.egg.egg-link
>>> print system(join('bin', 'buildout')+' -vvv'), # doctest:
+ELLIPSIS
Installing...
Develop: '/sample-buildout/foo'
in: '/sample-buildout/foo'
... -q develop -mxN -d /sample-buildout/develop-eggs/...
"""
I wonder where does the "ls('develop-eggs')" command come from ?
It is doctest buildin command ? Where can I found some documentation
about that ? I see this page http://docs.python.org/lib/module-
doctest.html and I found nothing about that subject.
Thanks for your help,
Stephane
http://docs.python.org/lib/module-doctest.html
--
http://mail.python.org/mailman/listinfo/python-list
Re: tracking collection modification
On Sep 7, 8:54 pm, [EMAIL PROTECTED] wrote: > I'm working on a remote object system, something kinda like Pyro. > For the purposes of caching I need to be able to tell if a given > dict / list / set has been modified. > Ideally what I'd like is for them to have a modification count > variable that increments every time the particular collection is > modified. Unfortunately I can't find anything like that and since this > needs to work for the regular normal list / dict / set objects > subclassing them to add the modification count isn't useful. > I realize I could take a copy and then compare the copy to the > original, but that's a fairly heavy handed approach and I was hoping > for something light and fast. > Does anyone have any suggestions on best to approach this? additionally I don't need to know if the things the list (etc) references have changed, only the list itself -- http://mail.python.org/mailman/listinfo/python-list
Re: Test if list contains another list
Hi, >>> a = [1,2,3] >>> b = [3,2,1,4] >>> a = set(a) >>> b = set(b) >>> a.intersection(b) set([1, 2, 3]) Is this what you want ? cheers James On 9/8/08, mathieu <[EMAIL PROTECTED]> wrote: > Hi there, > > I am trying to write something very simple to test if a list > contains another one: > > a = [1,2,3] > > b = [3,2,1,4] > > but 'a in b' returns False. How do I check that a is indeed contained > in b ? > > thanks > > -- > http://mail.python.org/mailman/listinfo/python-list > -- -- -- "Problems are solved by method" -- http://mail.python.org/mailman/listinfo/python-list
Re: universal unicode font for reportlab
Laszlo Nagy <[EMAIL PROTECTED]> writes: I could not find any free TTF font that can do latin1, latin2, arabic, chinese and other languages at the same time. Is there a single font that is able to handle these languages? The GNU Unifont http://en.wikipedia.org/wiki/GNU_Unifont> http://unifoundry.com/unifont.html> covers an impressive range of the Unicode Basic Multilingual Plane. Unifont is originally a bitmap font, but was recently made available in TrueType format http://www.lgm.cl/trabajos/unifont/index.en.html>. Both are available in Debian 'lenny'; the 'unifont' and 'ttf-unifont' packages, respectively. I found out that dejavu is what I need. It covers the languages I need and more: http://dejavu.svn.sourceforge.net/viewvc/dejavu/tags/version_2_26/dejavu-fonts/langcover.txt Thanks four your help! L -- http://mail.python.org/mailman/listinfo/python-list
Re: tracking collection modification
[EMAIL PROTECTED] wrote: > On Sep 7, 8:54 pm, [EMAIL PROTECTED] wrote: >> I'm working on a remote object system, something kinda like Pyro. >> For the purposes of caching I need to be able to tell if a given >> dict / list / set has been modified. >> Ideally what I'd like is for them to have a modification count >> variable that increments every time the particular collection is >> modified. Unfortunately I can't find anything like that and since this >> needs to work for the regular normal list / dict / set objects >> subclassing them to add the modification count isn't useful. >> I realize I could take a copy and then compare the copy to the >> original, but that's a fairly heavy handed approach and I was hoping >> for something light and fast. >> Does anyone have any suggestions on best to approach this? > > additionally I don't need to know if the things the list (etc) > references have changed, only the list itself No chance. E.g. ZODB is faced with the same problem and requires you to use certain collection implementations to make this work. And don't forget that such a scheme is hard to implement in the face of concurrent access by various clients - as client connection has to keep track of the last-modified-state separately. I'd say that for small to medium-sized collections, it's faster to just marshal them each time. Beyond that, make the heavy-handed checking - and offer dirty-state-aware collection classes one can use to optimize specific cases. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Read and write binary data
On Sep 7, 8:55 pm, Patrick Maupin <[EMAIL PROTECTED]> wrote: > On Sep 7, 5:41 pm, Mars creature <[EMAIL PROTECTED]> wrote: > > > Hi guys, > > I am new to Python, and thinking about migrating to it from matlab > > as it is a really cool language. Right now, I am trying to figure out > > how to control read and write binary data, like > > 'formatted','stream','big-endian','little-edian' etc.. as in fortran. > > I googled, but can not find a clear answer. Anyone has clue where can > > I learn it? Thanks!! > > Jinbo > > Start by looking at the array module. > > Regards, > Pat Thanks!! -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax Problem with strptime in Python 2.4
W. eWatson wrote:
> Apparently, use of strptime of datetime needs a workaround in Python 2.4
> to work properly. The workaround is d =
> datetime.datetime(*(time.strptime(date_string, format)[0:5])). However,
> when I try to use it, or even use it the regular way, it fails with
> AttributeError: type object 'datetime.datetime' has no attribute
> 'datetime'.
> From the following code code segment:
>
> format = '%Y%m%d_%H%M%S'
> #d=datetime.strptime('20080321_113405', format)-- typical use
> print time.strptime('20080321_113405', format)[0:5]
> d = datetime.datetime(*time.strptime('20080321_113405', format)[0:5])
>
> Does anyone know how to make this work in 2.4? If not, is there a way to
> achieve the same result?
This is not what you think it is. All your problem is that you do
from datetime import datetime
which imports the datetime-class, but then try to access
datetime.datetime
as if you had done
import datetime.
This actually is a wart in the datetime-module - it would be better if the
classes in there would follow PEP-8.
Diez
--
http://mail.python.org/mailman/listinfo/python-list
universal unicode font for reportlab
I need to create multi lingual invoices from reportlab. I think it is possible to use UTF 8 strings but there is a problem with the font. I could not find any free TTF font that can do latin1, latin2, arabic, chinese and other languages at the same time. Is there a single font that is able to handle these languages? (Most of our invoices will be for EN, FR, DE, HU, SK, CZ, RO but some of them needs to be in Chinese.) Thanks, Laszlo -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does the command "ls" in some doctest files come from ?
On Mon, 08 Sep 2008 12:15:15 +, KLEIN Stéphane wrote:
> Hi,
>
> for example, in http://svn.zope.org/zc.buildout/trunk/src/zc/buildout/
> tests.py?rev=89831&view=auto test file, there is this doctests :
[snip]
> >>> ls('develop-eggs')
> I wonder where does the "ls('develop-eggs')" command come from ?
>
> It is doctest buildin command ?
Easy to find out: import doctest and see for yourself:
>>> import doctest
>>> doctest.ls
Traceback (most recent call last):
File "", line 1, in
AttributeError: 'module' object has no attribute 'ls'
You found the ls() function in a docstring from Zope. The doctest seems
to be testing ls(). That suggests to me that ls() is defined in Zope, not
doctest.
Why do you ask?
--
Steven
--
http://mail.python.org/mailman/listinfo/python-list
Dictionaries and loops
Hi All
i have a CSV file that i'm reading in and each line has the look of
the below
{None: ['User-ID', 'Count']}
{None: ['576460847178667334', '1']}
{None: ['576460847178632334', '8']}
i want to make a dictionary of items in the form
{576460847178667334:1, 576460847178632334:8, . } for all rows in
the datafile
my code so far is thus:
dict1={}
j=1
for row in reader1:
if j==1:
j+=1
continue #thus allowing me to skip the first row
if j>1:
for element in row.values():
for item in element:
if int(item)%2==0:
dict1[int(item)] = int(item)+1
# i know this is the problem line as it's not picking the second item
up just finding the first and increasing it, but i can't figure out
how to correct this?
j+=1
I get one dictionary from this but not the correct data inside, can
anyone help?
--
http://mail.python.org/mailman/listinfo/python-list
Re: Test if list contains another list
mathieu a écrit : Hi there, I am trying to write something very simple to test if a list contains another one: a = [1,2,3] b = [3,2,1,4] but 'a in b' returns False. Indeed. Lists are not sets, and the fact that all elements of list a happens to also be part of list b doesn't make the list a itself an element of list b. >>> a = [1, 2, 3] >>> b = [3,2,1,4] >>> c = [b, a] >>> a in c True >>> b in c True >>> c [[3, 2, 1, 4], [1, 2, 3]] >>> How do I check that a is indeed contained in b ? But that's what you did - you *did* checked if a was contained in b, and this is not the case. What you want is to check if *all elements* of a are contained in b, which is quite another problem. Now the answer to your question : use sets. >>> set(a).issubset(set(b)) True >>> HTH -- http://mail.python.org/mailman/listinfo/python-list
Re: Test if list contains another list
mathieu wrote: Hi there, I am trying to write something very simple to test if a list contains another one: a = [1,2,3] b = [3,2,1,4] but 'a in b' returns False. How do I check that a is indeed contained in b ? Use sets: >>> a = [1,2,3] >>> b = [3,2,1,4] >>> set(a).issubset(set(b)) True Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Test if list contains another list
On Sep 8, 9:32 am, Bruno Desthuilliers <[EMAIL PROTECTED]> wrote: > mathieu a écrit : > > > Hi there, > > > I am trying to write something very simple to test if a list > > contains another one: > > > a = [1,2,3] > > > b = [3,2,1,4] > > > but 'a in b' returns False. > > Indeed. Lists are not sets, and the fact that all elements of list a > happens to also be part of list b doesn't make the list a itself an > element of list b. > > >>> a = [1, 2, 3] > >>> b = [3,2,1,4] > >>> c = [b, a] > >>> a in c > True > >>> b in c > True > >>> c > [[3, 2, 1, 4], [1, 2, 3]] > >>> > > > How do I check that a is indeed contained > > in b ? > > But that's what you did - you *did* checked if a was contained in b, and > this is not the case. What you want is to check if *all elements* of a > are contained in b, which is quite another problem. Now the answer to > your question : use sets. > > >>> set(a).issubset(set(b)) > True > >>> thanks all ! -- http://mail.python.org/mailman/listinfo/python-list
Re: String to hexadecimal conversion
On Sep 8, 2:05 pm, Praveena P <[EMAIL PROTECTED]> wrote:
> Hi folks,
>
> I am new to Python... so am not too sure about how the type conversion
> works.
>
> I have to read a file that contains hexadecimal data and use the data
> further to do some arithmetic calculations.
> A sample of the input is : 20E032F8400022005E
> The problem I am facing is this:
> I am using f.read(2) to read a byte at a time, but the data that is
> read is a string rather than a number. So it kind of hampers any
> arithmetic operations I perform on this data...
>
> Could you please suggest some method I could use for this?
>
> Thanks guys!
> Praveena
I was thinking of using dictionary like this:
hex_to_decimal = {"1":"1", "2":"2", "3":"3", "4":"4", "5":"5",
"6":"6", "7":"7", "8":"8", "9":"9", "A":"10", "B":"11", "C":"12",
"D":"13", "E":"14", "F":"15", "0":"0"}
Extracting one character at a time and converting to decimal, and then
using the decimal numbers generated for the further calculations
Would there be a simpler way to do it?
--
http://mail.python.org/mailman/listinfo/python-list
Test if list contains another list
Hi there, I am trying to write something very simple to test if a list contains another one: a = [1,2,3] b = [3,2,1,4] but 'a in b' returns False. How do I check that a is indeed contained in b ? thanks -- http://mail.python.org/mailman/listinfo/python-list
Clearing a session and reload() problem (with repro error)
Hi, This seems to be an old question, and I've read back a bit, but rather than assume the answer is "you can't do that", I'd thought I'd post my version of the question along with a reproducible error to illustrate my confusion. My problem is that I'm using Python inside XSI (a 3D graphics application). If I want to restart Python, I have to restart XSI. This is no small amount of time wasted. The solution would be to somehow unload modules and all references and allow my imports to rebuild the cache. I suppose it would be great to clear the python session completely, but the 3D application might have added something to the session at startup (I doubt this though as I don't see any imported modules outside the norm). I've tried to use reload with a very simple algorithm. Simply run through every imported module, ignoring anything that is "None" or on the C: drive (all of our python is on a network drive so this hack works for me for now) and reload() it. I've come to realize that this isn't near intelligent enough to handle sub-packages. Before I post the repro, my questions are: 1) Does anyone have a work-flow for my situation that doesn't use Reload, and doesn't involve restarting the app for every edit/fix 2) Can anyone help point me in the right direction to build a dependable algorithm to cleanly reload all loaded modules? NOTE: I don't need to maintain anything in memory (i.e. instances, pointers, etc.) Everything will be initialized again each time. I'm not asking for code. Just some ideas or pseudo-code would do nicely. Here is a "simple" repro... Package Structure: --- inheritRepro __init__.py baseLib.py child __init__.py __init__.py: import sys, os def reloadModules(): """ Reload all imported modules that are not on the C: drive. """ print "Reloading Python Modules..." # Iterate over all IMPORTED modules modules = sys.modules for modName in modules: mod = modules[modName] # Skip None types and other itesm we don't care about if modName == "__main__" or not hasattr(mod,"__file__"): continue # Get the drive and skip anything on the C: drive drive = os.path.splitdrive(mod.__file__)[0] if drive != "C:": reload(mod) print "Reloaded %s" % mod baseLib.py: --- class BaseClassA(object): pass class BaseClassB(BaseClassA): def __init__(self): super(BaseClassB, self).__init__() child.__init__.py: import inheritRepro.baseLib as baseLib class ChildClass(baseLib.BaseClassB): def __init__(self): super(ChildClass, self).__init__() RUN: --- >>> import inheritRepro >>> import inheritRepro.child as child >>> obj = child.ChildClass() >>> print obj >>> inheritRepro.reloadModules()# Output omitted, but this worked. >>> import inheritRepro >>> import inheritRepro.child as child >>> obj = child.ChildClass() Traceback (most recent call last): File "", line 0, in File "\\nas6tb\PROJECTS\tech\users\rafe.sacks\python\inheritRepro \child\__init__.py", line 5, in __init__ super(ChildClass, self).__init__() File "\\nas6tb\PROJECTS\tech\users\rafe.sacks\python\inheritRepro \baseLib.py", line 6, in __init__ super(BaseClassB, self).__init__() TypeError: super(type, obj): obj must be an instance or subtype of type NOTE: this works if I don't use a sub-package for 'child' (child.py instead). Is it overly simple to assume reloading by file structure might work? Right now I'm getting around this by reload()-ing the right package after running reloadModules() if an error occurs. It's a bit frustrating that it cost me two days of work before I realized it was reload() causing this error and not super() or some other unknown-to- me inheritance/package structure problem. I rebuilt my code module by module until I noticed, quite by accident, that the thing worked once and then never again! oh well, these are the joys of learning the hard way. I know this was a long one. If you made it this far, thanks for reading, - Rafe -- http://mail.python.org/mailman/listinfo/python-list
Re: String to hexadecimal conversion
On Sep 8, 7:05 pm, Praveena P <[EMAIL PROTECTED]> wrote: > Hi folks, > > I am new to Python... so am not too sure about how the type conversion > works. > > I have to read a file that contains hexadecimal data and use the data > further to do some arithmetic calculations. > A sample of the input is : 20E032F8400022005E > The problem I am facing is this: > I am using f.read(2) to read a byte at a time, but the data that is > read is a string rather than a number. So it kind of hampers any > arithmetic operations I perform on this data... > > Could you please suggest some method I could use for this? *IF* all the data consists of unsigned 8-bit integers a_byte = f.read(2) uint8 = int(a_byte, 16) But I doubt it and that would be rather slow anyway. If your data is homogenous, look at the array module. Otherwise, once you've worked out how to break your file down into records, and what the layout of each record is, you'll need the struct module. HTH, John -- http://mail.python.org/mailman/listinfo/python-list
Re: universal unicode font for reportlab
The GNU Unifont http://en.wikipedia.org/wiki/GNU_Unifont>
http://unifoundry.com/unifont.html> covers an impressive range of
the Unicode Basic Multilingual Plane.
Unifont is originally a bitmap font, but was recently made available
in TrueType format
http://www.lgm.cl/trabajos/unifont/index.en.html>.
Both are available in Debian 'lenny'; the 'unifont' and 'ttf-unifont'
packages, respectively.
I found out that dejavu is what I need. It covers the languages I need
and more:
http://dejavu.svn.sourceforge.net/viewvc/dejavu/tags/version_2_26/dejavu-fonts/langcover.txt
Sorry, this did not work either. Dejavu does support cyrillic and greek
characters but I have to load a different ttf for that. They are no
unified. :-( The only one that worked so far was "unifont.tff" but it is
very ugly above point size=10.
Can you tell me what kind of font Geany is using on my Ubuntu system?
The preferences tells that it is "monospace" but when I load
VeraMono.ttf in reportlab, it will not even display latin2 characters.
In contrast, please look at this example that show my test program in Geany:
http://www.shopzeus.com/geany.jpg
It is a real scalable truetype font, displaying latin 1, latin2,
chinese, russian and japanese characters. Is it the same font? Does this
mean that reportlab is buggy? If I could load the same font that geany
uses, it would probably solve my problem forever.
Thanks,
Laszlo
# -*- coding: UTF-8 -*-
import os,sys
import copy
from reportlab.pdfgen import canvas
from reportlab.lib import pagesizes
# we know some glyphs are missing, suppress warnings
import reportlab.rl_config
reportlab.rl_config.warnOnMissingFontGlyphs = 0
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttfonts import TTFont
#pdfmetrics.registerFont(TTFont('wpsu', 'vera/VeraMono.ttf '))
pdfmetrics.registerFont(TTFont('wpsu', 'VeraMono.ttf'))
xsize,ysize = PAGESIZE = pagesizes.A4
lines = [
"ÃRVÃZTÅ°RÅ TÃKÃRFÃRÃGÃP",
"éèªã®ãã¹ãã»ã©ã¼",
"ä¸å½çç½é¡µ",
"Ð¡Ð°Ð¹Ñ Ð² ÑазÑабоÑке",
]
c = canvas.Canvas('labels.pdf', pagesize=PAGESIZE)
for idx,line in enumerate(lines):
textobject = c.beginText()
textobject.setFont('wpsu',10)
textobject.setTextOrigin(100, 700 - 50*idx)
textobject.textLine(line)
c.drawText(textobject)
c.save()
if sys.platform=='win32':
os.system("labels.pdf")
else:
os.system("evince labels.pdf &")
--
http://mail.python.org/mailman/listinfo/python-list
flock trouble
I'm trying to implement a file server using the code below. However
the locking doesn't work. I can delete while put'ing a file.
Anyone got an idea about why?
best regards,
seb
#! /usr/bin/env python
import Pyro.core, Pyro.naming
from Pyro.errors import PyroError, NamingError
import sys
import urllib
import os
import fcntl
class fileServer(Pyro.core.ObjBase):
basePath = "/home/snot/diku/dist/opg2/files_to_serve"
def __init__(self):
Pyro.core.ObjBase.__init__(self)
self.basePath = self.basePath.strip("..")
if not os.path.isdir(self.basePath) or
os.path.islink(self.basePath):
raise "invalid path"
def get(self, uri):
f = open(self.basePath + uri, 'r+')
fcntl.flock(f, fcntl.LOCK_SH)
data = f.read()
fcntl.flock(f, fcntl.LOCK_UN)
f.close()
return data
def put(self, uri, payload):
f = open(self.basePath + urllib.unquote_plus(uri), 'w')
fcntl.flock(f, fcntl.LOCK_EX)
f.truncate()
f.write(payload)
fcntl.flock(f, fcntl.LOCK_UN)
f.close()
def delete(self, uri):
f = open(self.basePath + urllib.unquote_plus(uri), 'w')
fcntl.flock(f, fcntl.LOCK_EX)
os.unlink(self.basePath + uri)
fcntl.flock(f, fcntl.LOCK_UN)
f.close()
try:
Pyro.core.initServer()
daemon = Pyro.core.Daemon()
locator = Pyro.naming.NameServerLocator()
print 'Searching for Name Server...'
try:
ns = locator.getNS()
except Pyro.errors.PyroError, message:
print message
sys.exit(1)
daemon.useNameServer(ns)
try:
ns.unregister("fileServer")
except NamingError:
pass
uri = daemon.connect(fileServer(), "fileServer")
print "The daemon runs on port:", daemon.port
print "The object's uri is:", uri
daemon.requestLoop()
except KeyboardInterrupt:
ns.unregister("fileServer")
print "ctrl + c pressed"
--
http://mail.python.org/mailman/listinfo/python-list
Re: Learning Python
On 9/6/2008 5:17 AM James Pilling apparently wrote: Hi im currently starting to learn python in sixth form at school any tips? The books suggestions of others are quite good. Here is another approach: pick an easily understandable application, and work doing things with it. Perhaps immodestly, I think that as soon as you understand how to define a function and a class, you can treat this paper http://jasss.soc.surrey.ac.uk/11/3/8.html as an introduction to applied Python programming. The application area is very specific---game theoretic simulations---but the illustrated techniques are meant to be more general. Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list
Re: tracking collection modification
On 7 Sep, 12:54, [EMAIL PROTECTED] wrote: > I'm working on a remote object system, something kinda like Pyro. > For the purposes of caching I need to be able to tell if a given > dict / list / set has been modified. > Ideally what I'd like is for them to have a modification count > variable that increments every time the particular collection is > modified. Unfortunately I can't find anything like that and since this > needs to work for the regular normal list / dict / set objects > subclassing them to add the modification count isn't useful. What you appear to need here is some kind of proxying solution - a layer which records accesses to the objects, distinct from the objects themselves. I believe that the PyPy project provides something of this nature: http://codespeak.net/pypy/dist/pypy/doc/objspace-proxies.html Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: Dictionaries and loops
Mike P a écrit :
Hi All
i have a CSV file that i'm reading in and each line has the look of
the below
{None: ['User-ID', 'Count']}
{None: ['576460847178667334', '1']}
{None: ['576460847178632334', '8']}
This doesn't look like a CSV file at all... Is that what you actually
have in the file, or what you get from the csv.reader ???
i want to make a dictionary of items in the form
{576460847178667334:1, 576460847178632334:8, . } for all rows in
the datafile
my code so far is thus:
dict1={}
j=1
for row in reader1:
if j==1:
j+=1
continue #thus allowing me to skip the first row
if j>1:
Drop this, and call reader1.next() before entering the loop.
for element in row.values():
for item in element:
if int(item)%2==0:
dict1[int(item)] = int(item)+1
You're repeating the same operation (building an int from a string)
three time, where one would be enough:
for item in element:
item = int(item)
if item %2 == 0: # or : if not item % 2:
dict1[item] = item + 1
But this code is not going to yield the expected result...
# i know this is the problem line as it's not picking the second item
up just finding the first and increasing it, but i can't figure out
how to correct this?
Mmm... What about learning Python instead of trying any random code ?
Programming by accident won't take you very far, and you can't expect
this neswgroup to do your own work.
Ok, assuming your CSV file looks like this - and you never have
duplicate values for the User-id column:
# source.csv
"User-ID", "Count"
576460847178667334, 1
576460847178632334, 8'
Here's a possible solution:
result = {}
src = open("source.csv", "rb")
try:
reader = csv.reader(src)
reader.next()
for row in reader:
user_id, count = int(row[0]), int(row[1])
result[user_id] = count
finally:
src.close()
or more tersely:
src = open("source.csv", "rb")
try:
reader = csv.reader(src)
reader.next()
result = dict(map(int, row) for row in reader)
finally:
src.close()
--
http://mail.python.org/mailman/listinfo/python-list
Re: max(), sum(), next()
David C. Ullrich wrote: (ii) If A is a subset of B then we should have max(A) <= max(B). This requires that max(empty set) be something that's smaller than everything else. So we give up on that. Er, what about instances of variations/elaborations on class Smaller(object) : __cmp__ = lambda *_ : -1 ? Cheers, BB -- http://mail.python.org/mailman/listinfo/python-list
Re: Dictionaries and loops
Few solutions, not much tested:
data = """{None: ['User-ID', 'Count']}
{None: ['576460847178667334', '1']}
{None: ['576460847178632334', '8']}"""
lines = iter(data.splitlines())
lines.next()
identity_table = "".join(map(chr, xrange(256)))
result = {}
for line in lines:
parts = line.translate(identity_table, "'[]{},").split()
key, val = map(int, parts[1:])
assert key not in result
result[key] = val
print result
(With Python 3 finally that identity_table can be replaced by None)
# --
import re
patt = re.compile(r"(\d+).+?(\d+)")
lines = iter(data.splitlines())
lines.next()
result = {}
for line in lines:
key, val = map(int, patt.search(line).groups())
assert key not in result
result[key] = val
print result
# --
from itertools import groupby
lines = iter(data.splitlines())
lines.next()
result = {}
for line in lines:
key, val = (int("".join(g)) for h,g in groupby(line,
key=str.isdigit) if h)
assert key not in result
result[key] = val
print result
Bye,
bearophile
--
http://mail.python.org/mailman/listinfo/python-list
Re: Dictionaries and loops
Bruno Desthuilliers: > This doesn't look like a CSV file at all... Is that what you actually > have in the file, or what you get from the csv.reader ??? I presume you are right, the file probably doesn't contain that stuff like I have assumed in my silly/useless solutions :-) Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: Dictionaries and loops
[EMAIL PROTECTED] a écrit : Bruno Desthuilliers: This doesn't look like a CSV file at all... Is that what you actually have in the file, or what you get from the csv.reader ??? I presume you are right, the file probably doesn't contain that stuff like I have assumed in my silly/useless solutions :-) Yeps. I suspect the OP found a very creative way to misuse csv.DictReader, but I couldn't figure out how he managed to get such a mess. -- http://mail.python.org/mailman/listinfo/python-list
Re: firefox timestamp
abhilash pp wrote: I don't know if this question will fit on this section, any way my query is , i have used one script demork.py to extract details from Firefox history.dat file and now the problem is how to convert the TIMESTAMP given by that to normal date and time. example timestams are like this, 1202919771609375 1213874676203125 1215693263859375 i have used datetime module for this but it gave me error a quick googling indicates that the file contains microseconds, not seconds. dividing by 1e6 should do the trick: >>> t = 1202919771609375 >>> datetime.datetime.fromtimestamp(t / 1e6) datetime.datetime(2008, 2, 13, 17, 22, 51, 609375) -- http://mail.python.org/mailman/listinfo/python-list
Re: Dictionaries and loops
Thanks for the solution above,
The raw data looked like
User-ID,COUNTS
576460840144207854,6
576460821700280307,2
576460783848259584,1
576460809027715074,3
576460825909089607,1
576460817407934470,1
and i used
CSV_INPUT1 = "C:/Example work/Attr_model/Activity_test.csv"
fin1 = open(CSV_INPUT1, "rb")
reader1 = csv.DictReader((fin1), [], delimiter=",")
for row in reader1:
print row
with the following outcome.
{None: ['User-ID', 'COUNTS']}
{None: ['576460840144207854', '6']}
{None: ['576460821700280307', '2']}
{None: ['576460783848259584', '1']}
{None: ['576460809027715074', '3']}
{None: ['576460825909089607', '1']}
So i can see csv.reader is what i should have been using
Thanks for the help
--
http://mail.python.org/mailman/listinfo/python-list
Catching subprocess stdout stream
Dear all I have tkinkter based frontend to a Fortran based program. I use subprocess to launch the fortran program as a child process and I wish to see the output of the fortran program as it is created in the console. The fortran program can take up to 20 minuttes to finish and at the moment the I will first see any output after the fortran program is done. How make my function write the output of the process as it comes? def runprogram(Icommand, Ijobfile, Ioutput): if os.name == "posix": os.system(pythonpath+"/bin/"+Icommand+"< "+Ijobfile+" | tee "+Ioutput) elif os.name == "nt": import subprocess ofile = open(Ioutput, 'w') p = subprocess.Popen([os.path.join(pythonpath, "bin", Icommand + '.exe')], stdin=open(Ijobfile, "rb"),bufsize=1024,shell=False, stdout=subprocess.PIPE) while p.poll() is None: #Check if child process has terminated. o = p.stdout.readline() ofile.writelines(o) print o, ofile.close Kind regards Thomas Jansson -- http://mail.python.org/mailman/listinfo/python-list
Re: Files application architecture
Bruno Desthuilliers a écrit : Benjamin Watine a écrit : Hi, I'm about to develop a small python application and I wonder how to organize files in this application. I'm familar to java, so I'm tempted to use the same convention http://dirtsimple.org/2004/12/python-is-not-java.html : 1 file per class and 1 folders per package. Don't. This is a waste of time and a pain to maintain, and more over it doesn't make any sense since Python doesn't force you to put everything in classes. I know that packages doesn't exists in python, Did you actually read the doc ? While Python's packages are not the same thing as Java's, they do exist. http://docs.python.org/tut/node8.html#SECTION00840 they are modules instead. May I create specific module for each "group of class" ? The usual way to get cohesive modules is indeed to group closely related objects (classes, functions, etc) in a same module. My application follow the MVC paradigm, so basically, I've a package Model, a package View, and a package Controller. If your app is small, having _modules_ models, views and controllers should be enough. So, what are best practices for organizing files and folders in a small python project ? The best practice is to keep things simple, as usual. Thank you all for your good advices and links. I'm new to python and I have yet a lot of things to learn ! Now, I would like to take a look to a well coded wxPython application. Could anybody indicate a project that I could take as reference for standard python coding style ? Regards, Ben -- http://mail.python.org/mailman/listinfo/python-list
Re: Unable to start a process with subprocess Popen()
On Sep 8, 7:23 am, [EMAIL PROTECTED] wrote: > On Mon, Sep 8, 2008 at 11:50 AM, <[EMAIL PROTECTED]> wrote: > > Hi, > > > I'm using the subprocess module's Popen() to start a batch file. This > > batch file basically calls an exe which also gets started. > > Unfortunately, this does not produce any results. I looked into the > > Task bar that this exe has started but it does not consume and cpu so > > I believet that this exe is not working. > > > I used the following command to start the batch fiile: > > > testing = subprocess.Popen([batchFilePath], \ > > shell = True, \ > > stdout = subprocess.PIPE, \ > > stderr = subprocess.PIPE).communicate()[0] > > > batchFilePath is the path of the batch file. > > > -- > > Regrads, > > Rajat > > Ok, I re-phrase my question: > > there is a batch file that executes a exe file. The batch just works > if run from command prompt and produces output to standard output and > the file. > > Now, I try to call the same batch file from subprocess.Pope() call. > The batch file gets called and that internally also calls the exe > file. > > But, the exe just runs forever i.e. hangs and does not produces output > , atleast not to the file. > > Please suggest is there is something wrong with the above code. > > Regards, > Rajat Hello Rajat, I would take a look at the thread below, it might help it might not: http://groups.google.com/group/comp.lang.python/browse_thread/thread/4505613f014fdec7/3ee15c9c88a5efdc?hl=en#3ee15c9c88a5efdc Also, if you post a larger section of the code I might be able to give you a hand. Once you've run the testing = subprocess.Popen() make sure you use a testing.wait() -- http://mail.python.org/mailman/listinfo/python-list
Re: Dictionaries and loops
Mike P a écrit :
Thanks for the solution above,
The raw data looked like
User-ID,COUNTS
576460840144207854,6
576460821700280307,2
576460783848259584,1
576460809027715074,3
576460825909089607,1
576460817407934470,1
and i used
CSV_INPUT1 = "C:/Example work/Attr_model/Activity_test.csv"
fin1 = open(CSV_INPUT1, "rb")
reader1 = csv.DictReader((fin1), [], delimiter=",")
This should have been:
reader1 = csv.DictReader(fin1, delimiter=",")
or even just csv.DictReader(fin1), since IIRC ',' is the default
delimiter (I'll let you check this by yourself...).
with which you would have:
[
{'User-ID':'576460840144207854', 'count':'6'},
{'User-ID':'576460821700280307', 'count':'2'},
# etc...
]
with the following outcome.
{None: ['User-ID', 'COUNTS']}
{None: ['576460840144207854', '6']}
{None: ['576460821700280307', '2']}
{None: ['576460783848259584', '1']}
{None: ['576460809027715074', '3']}
{None: ['576460825909089607', '1']}
And you didn't noticed anything strange ???
So i can see csv.reader is what i should have been using
With only 2 values, DictReader is probably a bit overkill, yes.
Thanks for the help
You're welcome. But do yourself a favour: take time to *learn* Python -
at least the very basic (no pun) stuff like iterating over a sequence.
--
http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
> Perhaps the wrong idea of what the group is. I would have thought > that > if one had a sufficiently developed idea and wanted to have it / > formally/ > rejected, rather than merely sniped at, then writting a PEP would be > more > apposite than posting to c.l.py. > > It's fine to post your not sufficiently developed ideas here merely > to > have them discussed. But I don't know what makes you feel that you, > or > your ideas, are /entitled/ to any response at all, much less > "follow-through." To expand on this a little bit, I've been subscribed to this group for a couple of months, but there seems to be a bit more gray area between what would go to a 'python-dev' group and a 'python-user' group. Long debates about language features and abstract ideas would appeal to the former, but not the latter. Certainly I fall into the user category.. I'm pretty happy with python, and generally just adjust to it's design and features, rather than spend lots of time on whether they are 'right' or could be 'better'. /shrug -- http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
On Sun, Sep 7, 2008 at 10:59 PM, castironpi <[EMAIL PROTECTED]> wrote: > On Sep 7, 7:34 pm, MRAB <[EMAIL PROTECTED]> wrote: >> On Sep 7, 11:28 pm, "Eric Wertman" <[EMAIL PROTECTED]> wrote: >> >> > +1 Bot >> >> I think it's like duck typing: it doesn't matter whether he's actually >> a bot, only whether he behaves like one. > > Do you support the bot interface and methods? > -- And this is an example of why you get +1 bot. -- http://mail.python.org/mailman/listinfo/python-list
Trying to make a spider using mechanize
Hi,
I can read the home page using the mechanize lib. Is there a way to
load in web pages using filename.html instad of servername/
filename.html. Lots of time the links just have the file name. I'm
trying to read in the links name and then vsit those pages.
here is the sample code I am ussing.
import ClientForm
import mechanize
#get home page
request = mechanize.Request("http://www.activetechconsulting.com";)
response = mechanize.urlopen(request)
print response.read()
#sub page (this does note work)
request = mechanize.Request("service.html")
response = mechanize.urlopen(request)
print response.read-Ted
--
http://mail.python.org/mailman/listinfo/python-list
Re: Test if list contains another list
On Sep 8, 12:32 am, Bruno Desthuilliers <[EMAIL PROTECTED]> wrote: > mathieu a écrit : > > > Hi there, > > > I am trying to write something very simple to test if a list > > contains another one: > > > a = [1,2,3] > > > b = [3,2,1,4] > > > but 'a in b' returns False. > > Indeed. Lists are not sets, and the fact that all elements of list a > happens to also be part of list b doesn't make the list a itself an > element of list b. > > >>> a = [1, 2, 3] > >>> b = [3,2,1,4] > >>> c = [b, a] > >>> a in c > True > >>> b in c > True > >>> c > [[3, 2, 1, 4], [1, 2, 3]] > >>> > > > How do I check that a is indeed contained > > in b ? > > But that's what you did - you *did* checked if a was contained in b, and > this is not the case. What you want is to check if *all elements* of a > are contained in b, which is quite another problem. Now the answer to > your question : use sets. > > >>> set(a).issubset(set(b)) > True > >>> > > HTH Just to clarify, doing it using sets is not going to preserve order OR number of elements that are the same. That is: >>> a = [1,1,2,3,4] >>> b = [4,5,3,7,2,6,1] >>> set(a).issubset(set(b)) True This will return True if b contains at least on of each element found in a. If the OP wanted to check that list `a` appeared in order somewhere in list `b` then sets won't work. Matt -- http://mail.python.org/mailman/listinfo/python-list
Re: Unable to start a process with subprocess Popen()
On Mon, Sep 8, 2008 at 4:43 PM, aha <[EMAIL PROTECTED]> wrote:
> On Sep 8, 7:23 am, [EMAIL PROTECTED] wrote:
>> On Mon, Sep 8, 2008 at 11:50 AM, <[EMAIL PROTECTED]> wrote:
>> > Hi,
>>
>> > I'm using the subprocess module's Popen() to start a batch file. This
>> > batch file basically calls an exe which also gets started.
>> > Unfortunately, this does not produce any results. I looked into the
>> > Task bar that this exe has started but it does not consume and cpu so
>> > I believet that this exe is not working.
>>
>> > I used the following command to start the batch fiile:
>>
>> > testing = subprocess.Popen([batchFilePath], \
>> > shell = True, \
>> > stdout = subprocess.PIPE, \
>> > stderr =
subprocess.PIPE).communicate()[0]
>>
>> > batchFilePath is the path of the batch file.
>>
>> > --
>> > Regrads,
>> > Rajat
>>
>> Ok, I re-phrase my question:
>>
>> there is a batch file that executes a exe file. The batch just works
>> if run from command prompt and produces output to standard output and
>> the file.
>>
>> Now, I try to call the same batch file from subprocess.Pope() call.
>> The batch file gets called and that internally also calls the exe
>> file.
>>
>> But, the exe just runs forever i.e. hangs and does not produces output
>> , atleast not to the file.
>>
>> Please suggest is there is something wrong with the above code.
>>
>> Regards,
>> Rajat
>
> Hello Rajat,
> I would take a look at the thread below, it might help it might not:
>
>
http://groups.google.com/group/comp.lang.python/browse_thread/thread/4505613f014fdec7/3ee15c9c88a5efdc?hl=en#3ee15c9c88a5efdc
>
> Also, if you post a larger section of the code I might be able to give
> you a hand. Once you've run the testing = subprocess.Popen()
>
> make sure you use a testing.wait()
> --
> http://mail.python.org/mailman/listinfo/python-list
>
Hi Aaquil,
Thanks for helping me out with this piece of information.
My Original code is :
testing = subprocess.Popen([batchFilePath], \
shell = True, \
stdout = subprocess.PIPE, \
stderr = subprocess.PIPE)
result = testing.wait()
if result < 0:
childError = testing.stderr.read()
tkMessageBox._show("Error", \
icon='error', \
message ="Error: %s" % childError)
return None
else:
print result
My child process was unresponsive. Later I got to know with the below code
that there were some errors coming from the child process which I was not
able to detect with this code.
I googled for some solution and found the below code :-
print "ttt", batchFilePath
#print os.listdir(batchFilePath)
try:
cmd = subprocess.Popen([batchFilePath], \
shell = True, \
stdin = subprocess.PIPE,
stdout = subprocess.PIPE, \
stderr = subprocess.PIPE \
)
cmd.stdin.close()
outPipe, errPipe = PipeThread(cmd.stdout), PipeThread(cmd.stderr)
outPipe.run(), errPipe.run()
retcode = cmd.wait()
out, err = outPipe.getOutput(), errPipe.getOutput()
if retcode != 0 and err != '':
raise ExecutionFailed, os.path.basename(batchFilePath) + "
exited with error code " + str(retcode) + " and errors:\n" + err
elif retcode != 0:
raise ExecutionFailed, os.path.basename(batchFilePath) + "
exited with error code " + str(retcode) + " and output:\n" + out
elif err != '':
return out + "\n" + os.path.basename(batchFilePath) + " gave
warnings:\n" + err
else:
return out
except Exception, e:
if isinstance(e, ExecutionFailed):
raise
else:
raise ExecutionFailed, "Error while executing " + ":\n" +
str(e)
Here are the Exception and the PipeThread Classes:
class PipeThread(threading.Thread):
def __init__(self, fin):
self.fin = fin
self.sout = ""
threading.Thread.__init__(self)
def run(self):
self.sout = self.fin.read()
def getOutput(self):
return self.sout
class ExecutionFailed(Exception):
def __init__(self, value):
self.parameter = value
def __str__(self):
return str(self.parameter)
Although, this solved my problem. But I know there is no need for using
threading in this problem. This problem could've been solved just by the
subprocess module.
I'm unnecessarily using the threading module.
Regards,
Rajat
--
Regrads,
Rajat
--
http://mail.python.org/mailman/listinfo/python-list
Calling Common Lisp Game Developers
We are currently seeking talented Lisp Game Developers who are passionate about game development and want to play a major role in developing and maintaining new features for one of our persistent browser games. This particular title uses Hunchentoot, but all other code has been developed in house using the Mnesia database for persistence. This particular game is not released yet but has already generated interest from over 35,000 players globally. If you’re interested in developing Persistent Browser Games using SBCL and want to know more then send us an email at [EMAIL PROTECTED] The preferred location for this role is in Dublin, Ireland but we are also open to hearing from anyone who prefers to work remotely. http://omacindustries.com -- http://mail.python.org/mailman/listinfo/python-list
Calling Common Lisp Game Developers
We are currently seeking talented Lisp Game Developers who are passionate about game development and want to play a major role in developing and maintaining new features for one of our persistent browser games. This particular title uses Hunchentoot, but all other code has been developed in house using the Mnesia database for persistence. This particular game is not released yet but has already generated interest from over 35,000 players globally. If you’re interested in developing Persistent Browser Games using SBCL and want to know more then send us an email at [EMAIL PROTECTED] The preferred location for this role is in Dublin, Ireland but we are also open to hearing from anyone who prefers to work remotely. http://omacindustries.com -- http://mail.python.org/mailman/listinfo/python-list
Problems downloading and installing win32api
I have attempted downloading and installing several different version of the win32api from Source Forge, however, each time I try to install I get the following error message: "Only part of a ReadProcessMemory or WriteProcessMemory request was completed" This occurred with the following files: pywin32-212.win32-py2.4.exe pywin32-212.win32-py2.5.exe pywin32-212.win32-py2.6.exe I am using WinXP SP2. Any assistance on getting this downloaded and installed would be great. Thanks B -- http://mail.python.org/mailman/listinfo/python-list
Re: Read and write binary data
On Sun, Sep 7, 2008 at 5:41 PM, Mars creature <[EMAIL PROTECTED]> wrote: > Hi guys, > I am new to Python, and thinking about migrating to it from matlab > as it is a really cool language. Right now, I am trying to figure out If you're trying to migrate from matlab to python I'd take a look at numpy: http://numpy.scipy.org/ And scipy which is built on top of numpy: http://www.scipy.org/ There is a plotting/numerical computation package known as matplotlib that does its best to parallel matlab commands: http://matplotlib.sourceforge.net/ There is support for reading and writing binary data, even fortran records. And last but not least, you can always take a look at the scipy and numpy mailing lists. Good luck, Kurt > how to control read and write binary data, like > 'formatted','stream','big-endian','little-edian' etc.. as in fortran. > I googled, but can not find a clear answer. Anyone has clue where can > I learn it? Thanks!! > Jinbo > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
Re: Learning Python
I like two 1. www.diveintopython.com and 2. Core Python Programming. On Mon, Sep 8, 2008 at 6:15 AM, Alan G Isaac <[EMAIL PROTECTED]> wrote: > On 9/6/2008 5:17 AM James Pilling apparently wrote: > >> Hi im currently starting to learn python in sixth form at school any tips? >> > > The books suggestions of others are quite good. > Here is another approach: pick an easily understandable > application, and work doing things with it. > > Perhaps immodestly, I think that as soon as you > understand how to define a function and a class, > you can treat this paper > http://jasss.soc.surrey.ac.uk/11/3/8.html > as an introduction to applied Python programming. > The application area is very specific---game theoretic > simulations---but the illustrated techniques are > meant to be more general. > > Alan Isaac > > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://www.goldwatches.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: universal unicode font for reportlab
Iain Dalton wrote: Why don't you want to use multiple typefaces? Many programs that deal with multilingual strings use multiple fonts (cf. any Web browser and Emacs). You are right, but these PDF documents will show mixed strings. The end user can enter arbitrary strings into the database, and they must be presented. For example, the name of a product can be arabic or german. It might be possible to guess the language used from the unicode string, and then select a different font. But I don't want to go into that trouble. It would be a great idea to use pango. Apparently pango is able to change fonts on the fly and render the requested glyph. However, if I use pango then I loose the much higher level of abstraction that comes with reportlab and platypus: I need automatic page headers and footers, I need to be able to repeat table headers on each page automatically (when the table doesn't fit one page) etc. Developing my own "platypus" like engine for pango and PDF rendering is a nightmare. Better than that, I can develop my own flowable object for platypus: a special paragraph that changes the used true type font on the fly. (Split input string into parts, determine language for the parts and display each part with its own font.) But of course this is a lot of extra programming. The simplest solution would be to use a font that is able to handle all encodings that I need. Thanks, Laszlo -- http://mail.python.org/mailman/listinfo/python-list
shelve file name extention
Hi All, When I am using shelve on my local machine it generates the db file as given filename. But in another machine it's generating .dat and .dir. can anyone tell me how can I force sheve module to write the db in .dir and .dat, instead of ? Do I have to install a specific version of the python? Thanks... Monu -- http://mail.python.org/mailman/listinfo/python-list
Re: Read and write binary data
I don't know if this is going to help you but a free&open alternative to Matlap is FreeMat just search for it -- http://mail.python.org/mailman/listinfo/python-list
Re: shelve file name extention
Monu> When I am using shelve on my local machine it generates the db Monu> file as given filename. But in another machine it's generating Monu> .dat and .dir. can anyone tell me how can I force sheve Monu> module to write the db in .dir and .dat, Monu> instead of ? Do I have to install a specific version of Monu> the python? Shelve is just a thin layer on top of a concrete db file module. Sounds like on your two machines there are different underlying db file modules available. You're pretty much at the mercy of those modules as to file naming. All you are giving it when opening a shelve file is the prefix. Skip -- http://mail.python.org/mailman/listinfo/python-list
Re: [ANN] pysqlite 2.5.0 released
On Sep 8, 2008, at 1:56 PM, Gerhard Häring wrote: But AFAIK it's possible to compile a custom SQLite with appropriate flags to ./configure that will include the fulltext search extension. It's indeed rather straightforward to integrate FTS, e.g.: % CFLAGS="-DSQLITE_ENABLE_FTS3=1" ./configure % sudo make install "Full-Text Search on SQLite" http://blog.michaeltrier.com/tags/fts Here is an example of FTS at work: http://svr225.stepx.com:3388/search?q=chicago Cheers, -- PA. http://alt.textdrive.com/nanoki/ -- http://mail.python.org/mailman/listinfo/python-list
exit()
In Python 2.5.2, I notice that, in the interpreter or in a script, I can exit
with:
exit()
But I don't see exit() mentioned as a built-in function; rather the Python
Library Reference says we should use sys.exit(). Also, the reference says
sys.exit() is like raising SystemExit. But so is just calling exit(). For
instance,
exit('some error message')
has the same apparent effect as
raise SystemExit, 'some error message'.
Both return a status code of 1 and print the error string on the console.
Is exit() documented somewhere I haven't been able to find? Is there any reason
to use sys.exit() given exit()'s availability?
If there is an advantage to sys.exit() over exit(), then does sys.exit() have
any advantage over "raise SystemExit, 'some error message'" in cases where a
module has no other reason to import sys?
--
Gary Robinson
CTO
Emergent Music, LLC
personal email: [EMAIL PROTECTED]
work email: [EMAIL PROTECTED]
Company: http://www.emergentmusic.com
Blog:http://www.garyrobinson.net
--
http://mail.python.org/mailman/listinfo/python-list
Re: exit()
Gary Robinson wrote: In Python 2.5.2, I notice that, in the interpreter or in a script, I can exit with: exit() The exit callable is defined in the site module. Check out site.py! It shouldn't be used in code. It was added to help newbies to 'escape' from an interactive Python shell. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
On Mon, Sep 8, 2008 at 9:03 AM, Eric Wertman <[EMAIL PROTECTED]> wrote: >> Perhaps the wrong idea of what the group is. I would have thought >> that >> if one had a sufficiently developed idea and wanted to have it / >> formally/ >> rejected, rather than merely sniped at, then writting a PEP would be >> more >> apposite than posting to c.l.py. >> >> It's fine to post your not sufficiently developed ideas here merely >> to >> have them discussed. But I don't know what makes you feel that you, >> or >> your ideas, are /entitled/ to any response at all, much less >> "follow-through." > > > To expand on this a little bit, I've been subscribed to this group > for a couple of months, but there seems to be a bit more gray area > between what would go to a 'python-dev' group and a 'python-user' > group. Long debates about language features and abstract ideas would > appeal to the former, but not the latter. Certainly I fall into the > user category.. I'm pretty happy with python, and generally just > adjust to it's design and features, rather than spend lots of time on > whether they are 'right' or could be 'better'. /shrug Yeah, suggestions about changing the language are much better suited to the more-specific Python-ideas or Python-3000 mailinglists than the general-purpose c.l.p - Chris > -- > http://mail.python.org/mailman/listinfo/python-list > -- Follow the path of the Iguana... http://rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: exit()
On Mon, 08 Sep 2008 21:03:48 +0200, Christian Heimes <[EMAIL PROTECTED]> wrote: Gary Robinson wrote: In Python 2.5.2, I notice that, in the interpreter or in a script, I can exit with: exit() The exit callable is defined in the site module. Check out site.py! It shouldn't be used in code. It was added to help newbies to 'escape' from an interactive Python shell. It works. Why shouldn't it be used? Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: max(), sum(), next()
On Sep 8, 8:54 am, Boris Borcic <[EMAIL PROTECTED]> wrote: > David C. Ullrich wrote: > > > (ii) If A is a subset of B then we should have > > max(A) <= max(B). This requires that max(empty set) > > be something that's smaller than everything else. > > So we give up on that. > > Er, what about instances of variations/elaborations on > > class Smaller(object) : __cmp__ = lambda *_ : -1 > > ? > > Cheers, BB You still don't have the property max(X) is in X. And it's the equivalent of a special builtin constant for max on the empty set. -- http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
On Sep 8, 11:23 am, "Dan Upton" <[EMAIL PROTECTED]> wrote: > On Sun, Sep 7, 2008 at 10:59 PM, castironpi <[EMAIL PROTECTED]> wrote: > > On Sep 7, 7:34 pm, MRAB <[EMAIL PROTECTED]> wrote: > >> On Sep 7, 11:28 pm, "Eric Wertman" <[EMAIL PROTECTED]> wrote: > > >> > +1 Bot > > >> I think it's like duck typing: it doesn't matter whether he's actually > >> a bot, only whether he behaves like one. > > > Do you support the bot interface and methods? > > -- > > And this is an example of why you get +1 bot. I took Eric's comment to be a joke and mine was too. I don't get the feeling yours is, no offense. -- http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
On Sep 8, 2:04 pm, "Chris Rebert" <[EMAIL PROTECTED]> wrote: > On Mon, Sep 8, 2008 at 9:03 AM, Eric Wertman <[EMAIL PROTECTED]> wrote: > >> Perhaps the wrong idea of what the group is. I would have thought > >> that > >> if one had a sufficiently developed idea and wanted to have it / > >> formally/ > >> rejected, rather than merely sniped at, then writting a PEP would be > >> more > >> apposite than posting to c.l.py. > > >> It's fine to post your not sufficiently developed ideas here merely > >> to > >> have them discussed. But I don't know what makes you feel that you, > >> or > >> your ideas, are /entitled/ to any response at all, much less > >> "follow-through." > > > To expand on this a little bit, I've been subscribed to this group > > for a couple of months, but there seems to be a bit more gray area > > between what would go to a 'python-dev' group and a 'python-user' > > group. Long debates about language features and abstract ideas would > > appeal to the former, but not the latter. Certainly I fall into the > > user category.. I'm pretty happy with python, and generally just > > adjust to it's design and features, rather than spend lots of time on > > whether they are 'right' or could be 'better'. /shrug > > Yeah, suggestions about changing the language are much better suited > to the more-specific Python-ideas or Python-3000 mailinglists than the > general-purpose c.l.p > - Chris > > > -- > >http://mail.python.org/mailman/listinfo/python-list > > -- > Follow the path of the Iguana...http://rebertia.com Some of the core devs from Python-Ideas have suggested that I get some of my ideas started on c.l.py. Also, I'm looking for people to connect with and interact with about Python and none of the core devs have time, which makes c.l.py the place. I'm starting to get discouraged, as though there's no one really interested in this cool thing I'm thinking of. Or did I just not describe it well? It would be safe to assume that people read my post, understood it, and weren't interested, except that a few replies came, and then it was dropped without any obvious explanation. Further, and I'm sad to report this, I found tempers really high strung on the Ideas list, so c.l.py may have more potential anyway, with more young and flexible users. Not to say that the core devs are old or brittle or anything, just that their time is already devoted and they don't have time for people like me. -- http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
On 2008-09-08, Chris Rebert <[EMAIL PROTECTED]> wrote: > On Mon, Sep 8, 2008 at 9:03 AM, Eric Wertman <[EMAIL PROTECTED]> wrote: > >> To expand on this a little bit, I've been subscribed to this >> group for a couple of months, but there seems to be a bit more >> gray area between what would go to a 'python-dev' group and a >> 'python-user' group. Long debates about language features and >> abstract ideas would appeal to the former, but not the latter. >> Certainly I fall into the user category.. I'm pretty happy >> with python, and generally just adjust to it's design and >> features, rather than spend lots of time on whether they are >> 'right' or could be 'better'. /shrug > > Yeah, suggestions about changing the language are much better > suited to the more-specific Python-ideas or Python-3000 > mailinglists than the general-purpose c.l.p I don't think anybody here in c.l.p minds reading suggestions for language features/changes, but often what the poster in question writes is just an incomprehensible collection of vaguely philosophical-sounding metaphores and similes reminiscent of a hoax paper submitted as a joke to a post-modern "journal" of some pretend science or other. -- Grant Edwards grante Yow! Used staples are good at with SOY SAUCE! visi.com -- http://mail.python.org/mailman/listinfo/python-list
Re: How to run PyOS_InputHook from python code (i.e. yield to event loops)
On Sep 6, 1:00 pm, [EMAIL PROTECTED] (Ville M. Vainio) wrote:
> Background: PyOS_InputHook is something that gets run when python is
> doing raw_input. TkInter and friends use it to run their event loops,
> so that their events are handled while python is doing raw_input.
>
> What I'd like to do is run the same function without having to do
> raw_input. I.e. I'd like to run whatever event loop is available,
> without incorporating any gui-specific code (PyOS_InputHook seems like
> a nifty way to accomplish this).
>
> My actual use case is to keep a tkinter application responsive while
> launching a background process (and waiting for it to complete!).
>
> My eventual code would be something like:
>
> launch_process_in_thread('bzr pull')
>
> while not is_done:
> pyos_inputhook()
> time.sleep(0.1)
>
> print "Done!"
I'm still recovering from a hangover, so don't quote me. I think you
want the "after" function:
launch_process_in_thread('bzr pull')
self.update()
def update(self):
while not self.is_done:
self.after(2000, self.update)
--
http://mail.python.org/mailman/listinfo/python-list
Re: Problems downloading and installing win32api
brianrpsgt1 wrote: I have attempted downloading and installing several different version of the win32api from Source Forge, Whe win32 tools come bundled with ActiveState's python distribution. Maybe that'll move you forward... Emile however, each time I try to install I get the following error message: "Only part of a ReadProcessMemory or WriteProcessMemory request was completed" This occurred with the following files: pywin32-212.win32-py2.4.exe pywin32-212.win32-py2.5.exe pywin32-212.win32-py2.6.exe I am using WinXP SP2. Any assistance on getting this downloaded and installed would be great. Thanks B -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
finding the parent class (not superclass) of the currently executing method derived from a Borg class
I want to create a class derived from a Borg class that can
instantiated as part of a script or be contained in other classes.
When methods from the Borg class are called, I would like to know the
name of the class that contains the Borg class.
I've played a bit with inspect and _getframe from the sys module but
get inconsistent results. The main problem is if the Borg class is
instantiated outside a containing class, then I need to go up a
different number of stack frames. But this information isn't
available till after I've run out of stack frames.
Hopefully the following code better describes what I'm looking to do.
import sys
class Borg:
_shared_state = {}
def __init__(self):
self.__dict__=self._shared_state
class Assimilated(Borg):
valueByCaller = {}
def __init__(self, setupvalue):
print "In Assimilated.__init__()"
print "setupvalue is: " + str(setupvalue)
# would like key to be name of class (or module) that
# contins Assimilated
callerID = sys._getframe(1).f_code.co_name
self.valueByCaller[callerID] = setupvalue
print self.valueByCaller
def action(self, calledvalue):
print "In Assimilated.action()"
print "self.__classname__: " + self.__class__.__name__
print "calledvalue is: " + str(calledvalue)
print "self.valueByCaller"
print self.valueByCaller
# need to get proper key depending on which class (or module)
# made the call
#print "0: " + sys._getframe(0).f_code.co_name
#print "1: " + sys._getframe(1).f_code.co_name
#print "2: " + sys._getframe(2).f_code.co_name
#print "3: " + sys._getframe(3).f_code.co_name
callerID = sys._getframe(2).f_code.co_name
print "callerID"
print callerID
if(self.valueByCaller[callerID] <= calledvalue):
print "doing the action"
class A:
assim_object = Assimilated(2)
def __init__(self):
self.assim_object.action(2)
self.assim_object.action(3)
class B:
assim_object = Assimilated(3)
def __init__(self):
self.assim_object.action(3)
self.assim_object.action(4)
class C:
assim_object = Assimilated(4)
def __init__(self):
self.assim_object.action(4)
self.assim_object.action(5)
a=A()
b=B()
c=C()
obj=Assimilated(3)
#obj.action(3)
When I run this, I get the following output:
In Assimilated.__init__()
setupvalue is: 2
{'A': 2}
In Assimilated.__init__()
setupvalue is: 3
{'A': 2, 'B': 3}
In Assimilated.__init__()
setupvalue is: 4
{'A': 2, 'C': 4, 'B': 3}
In Assimilated.action()
self.__classname__: Assimilated
calledvalue is: 2
self.valueByCaller
{'A': 2, 'C': 4, 'B': 3}
callerID
Traceback (most recent call last):
File "\CallerID.py", line 67, in
a=A()
File "\CallerID.py", line 49, in __init__
self.assim_object.action(2)
File "\CallerID.py", line 41, in action
if(self.valueByCaller[callerID] <= calledvalue):
KeyError: ''
What I found most peculiar when I started this was that the
valueByCaller dictionary was completely populated before the __init__
method of a was executed. I'm pretty sure that this has to do with
the difference between when the object gets instanced and when it gets
initialized, but I need to do some more research and reading to be
able to explain it to myself.
Thanks for any help you can give me.
Kevin
--
http://mail.python.org/mailman/listinfo/python-list
Re: Updating python dictionary
On Sep 8, 10:20 am, John Machin <[EMAIL PROTECTED]> wrote:
> On Sep 8, 10:47 am, MK Bernard <[EMAIL PROTECTED]> wrote:
>
>
>
> > On Sep 7, 3:37 pm, John Machin <[EMAIL PROTECTED]> wrote:
>
> > > On Sep 8, 7:51 am, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
>
> > > > Hello...
>
> > > > I have a dict of key/values and I want to change the keys in it, based
> > > > on another mapping dictionary. An example follows:
>
> > > > MAPPING_DICT = {
> > > > 'a': 'A',
> > > > 'b': 'B',
>
> > > > }
>
> > > > my_dict = {
> > > > 'a': '1',
> > > > 'b': '2'
>
> > > > }
>
> > > > I want the finished my_dict to look like:
>
> > > > my_dict = {
> > > > 'A': '1',
> > > > 'B': '2'
>
> > > > }
>
> > > > Whereby the keys in the original my_dict have been swapped out for the
> > > > keys mapped in MAPPING_DICT.
>
> > > > Is there a clever way to do this, or should I loop through both,
> > > > essentially creating a brand new dict?
>
> > > Is this homework?
>
> > > There seems to be an implicit assumption in the answers so far that
> > > your mapping is a 1:1 mapping of all possible input keys.
>
> > > If it doesn't include all possible input keys, answers will crash with
> > > a KeyError. If there are any many:1 elements in the mapping (for
> > > example, {'a': 'A', 'b': 'A'}), lossage happens. You may wish to code
> > > in some checks for this.
>
> > Thats exactly why I did an explicit check in my post, so as to make
> > sure that such a collision could not occur. It would seem that
> > something along what I posted would be safer, if less elegant, than
> > the others.
>
> I noted two problems:
> (1) not covering all input keys: your code explicitly sweeps this
> problem under the carpet, and does it laboriously ...
> if x in my_dict.keys():
> instead of
> if x in my_dict:
> (2) not a 1:1 mapping -- for example, 'a' and 'b' both map to 'A' (the
> only "collision" that I can see), but you don't address that.
>
> Here's some code which attempts to cover the bases:
>
> new_dict = {}
> for key in my_dict:
> if key not in MAPPING_DICT:
> raise NoMapError('blah %r' % key)
> else:
> new_key = MAPPING_DICT[key]
> if new_key in new_dict:
> raise ManyToOneError('gurgle %r waffle %r' % (key, new_key))
> else:
> new_dict[new_key] = my_dict[key]
>
> Having considered what is actually required under the checked-for
> conditions, one or both raise statements may be replaced by other
> code, and then simplified e.g. the first 4 lines in the loop may end
> up being replaced by
> new_key = MAPPING_DICT.get(key, key)
> as already suggested by one respondent.
>
> Note that useful use-cases for any variety of this key-change exercise
> may have many more items in MAPPING_DICT than there are in my_dict (a
> big language dictionary and a few fragments of text to be
> "translated"), or vice versa (a small synonym dictionary (color ->
> colour, center -> centre) and a big input to be "standardised") so
> it's a good idea to inquire which is likely to be the smaller and
> iterate over that if the requirements permit it.
In the interests of academia (although this isn't homework :)) I'll
answer some of those questions:
- Yes, the mapping dict doesn't necessarily have the same number of
entries as the my_dict. It may have less than it or more than it.
- There will never be dupes of key or value in the mapping. Though
there maybe in my_dict.
And, for extra credit, it may be useful to be able to 'translate' the
my_dict back again using the same mapping_dict. ie, using the values
in mapping dict as the new keys in my_dict, and the keys as the new
values.
Andy.
--
http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
Chris Rebert wrote: On Mon, Sep 8, 2008 at 9:03 AM, Eric Wertman <[EMAIL PROTECTED]> wrote: To expand on this a little bit, I've been subscribed to this group for a couple of months, but there seems to be a bit more gray area between what would go to a 'python-dev' group and a 'python-user' group. Long debates about language features and abstract ideas would appeal to the former, but not the latter. The py-dev mailing list, and its gmane.comp.python.devel mirror, is for concrete discussion, mostly by developers, of how to develop the current and next release. The current focus in on finishing 2.6 for release. Almost nothing that has appeared here recently belongs there. It is much more common for people to post there usage questions that belong here or speculative issues that could also go to python-ideas. >> Certainly I fall into the user category.. I'm pretty happy with python, and generally just adjust to it's design and features, rather than spend lots of time on whether they are 'right' or could be 'better'. /shrug Long rehashes of decided issues, like the name of subprocess.popen, or the default of sum(), belong here better than anywhere else, if anywhere ;-). Yeah, suggestions about changing the language are much better suited to the more-specific Python-ideas or Python-3000 mailinglists than the general-purpose c.l.p The Python-3000 mailing list, and the gmane.comp.python.python-3.devel mirror, is the py-dev equivalent for python3-specific issues. tjr -- http://mail.python.org/mailman/listinfo/python-list
Re: universal unicode font for reportlab
The simplest solution would be to use a font that is able to handle all encodings that I need. My OpenOffice on WinXP uses a unicode font, I believe Lucida Sans Unicode, that seems to cover the entire BMP. I don't know whether it was already installed or installed by OO or how one would get to it to extract it. -- http://mail.python.org/mailman/listinfo/python-list
Re: hashing an array - howto
[EMAIL PROTECTED] wrote:
John Machin:
Consider this:>>> hash(123) == hash(123.0) == hash(123L)
True
Right... Can you explain me why Python designers have chosen to build
a hash() like that?
Because that's the kind of hash that dicts expect. If two objects are equal
(i.e. (x==y) is True), they need to have their hash values equal as well. In
order to do a lookup into a dict, it will hash the key and search the table for
a that hash value. If there are multiple keys with the same hash value, then the
dict will compare the keys by value to find a match. Since (123==123.0==123L),
they must also have the same hash value such that
{123.0: 'got it'}[123] == 'got it'
--
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: Where does the command "ls" in some doctest files come from ?
KLEIN Stéphane wrote:
Hi,
for example, in http://svn.zope.org/zc.buildout/trunk/src/zc/buildout/
tests.py?rev=89831&view=auto test file, there is this doctests :
def develop_verbose():
"""
We should be able to deal with setup scripts that aren't setuptools based.
>>> mkdir('foo')
>>> write('foo', 'setup.py',
... '''
... from setuptools import setup
... setup(name="foo")
... ''')
>>> write('buildout.cfg',
... '''
... [buildout]
... develop = foo
... parts =
... ''')
>>> print system(join('bin', 'buildout')+' -vv'), # doctest: +ELLIPSIS
Installing...
Develop: '/sample-buildout/foo'
...
Installed /sample-buildout/foo
...
>>> ls('develop-eggs')
- foo.egg-link
- zc.recipe.egg.egg-link
>>> print system(join('bin', 'buildout')+' -vvv'), # doctest:
+ELLIPSIS
Installing...
Develop: '/sample-buildout/foo'
in: '/sample-buildout/foo'
... -q develop -mxN -d /sample-buildout/develop-eggs/...
"""
I wonder where does the "ls('develop-eggs')" command come from ?
'ls' is the unix abbreviation for the shell command 'list files (in a
directory)'. The name is used above for a similar Python function. It
presumably was imported somewhere before develop_verbose, or else is
part of the auto-imported site.py for a development site.
--
http://mail.python.org/mailman/listinfo/python-list
The difference between __XX__ and XX method
Hi, Pythoners. I would like to know that in some class, it uses __XX__ but in some it uses only XX for example, class Test: def __som__(self): ... def som(self): ... What does "__XX__" make the method different from XX? Thanks in advance Aonlazio -- http://mail.python.org/mailman/listinfo/python-list
Re: exit()
Hi Jean-Paul, Jean-Paul Calderone wrote: On Mon, 08 Sep 2008 21:03:48 +0200, Christian Heimes <[EMAIL PROTECTED]> wrote: Gary Robinson wrote: In Python 2.5.2, I notice that, in the interpreter or in a script, I can exit with: exit() The exit callable is defined in the site module. Check out site.py! It shouldn't be used in code. It was added to help newbies to 'escape' from an interactive Python shell. It works. Why shouldn't it be used? Jean-Paul Backwards compatibility vs. saving 4 characters. I'd stick with backwards compatibility bye N -- http://mail.python.org/mailman/listinfo/python-list
class(object) and (type)??
Hi again pythoners, I notice in the class of a code having (object) and (type) attached to the name of the class. I know that in other cases, that means the class inherits methods and properties from other but In this case, what does it mean? For example, class PY(object): def __init__(self): ... class PO(type): def __init__(self): ... What do "object" and "type" mean? Thanks in advance Aonlazio -- http://mail.python.org/mailman/listinfo/python-list
Re: The difference between __XX__ and XX method
Hi, This is convention only and typically used to denote that a particular class attribute is "private". Though note, there is really no such thing in Python. cheers James On Tue, Sep 9, 2008 at 7:31 AM, AON LAZIO <[EMAIL PROTECTED]> wrote: > Hi, Pythoners. > I would like to know that in some class, it uses __XX__ but in some it > uses only XX > for example, > > class Test: > def __som__(self): > ... > def som(self): > ... >What does "__XX__" make the method different from XX? >Thanks in advance > Aonlazio > > -- > http://mail.python.org/mailman/listinfo/python-list > -- -- -- "Problems are solved by method" -- http://mail.python.org/mailman/listinfo/python-list
Re: Trying to make a spider using mechanize
Hi,
Perhaps you might want to
try out using a sample spider
I wrote and base your code of
this ?
See:
http://hg.shortcircuit.net.au/index.wsgi/pymills/file/b9936ae2525c/examples/spider.py
cheers
James
On Tue, Sep 9, 2008 at 2:24 AM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I can read the home page using the mechanize lib. Is there a way to
> load in web pages using filename.html instad of servername/
> filename.html. Lots of time the links just have the file name. I'm
> trying to read in the links name and then vsit those pages.
>
> here is the sample code I am ussing.
>
>
> import ClientForm
> import mechanize
>
>
> #get home page
> request = mechanize.Request("http://www.activetechconsulting.com";)
> response = mechanize.urlopen(request)
> print response.read()
>
> #sub page (this does note work)
> request = mechanize.Request("service.html")
> response = mechanize.urlopen(request)
> print response.read-Ted
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
--
-- "Problems are solved by method"
--
http://mail.python.org/mailman/listinfo/python-list
Re: The difference between __XX__ and XX method
AON LAZIO wrote: Hi, Pythoners. I would like to know that in some class, it uses __XX__ but in some it uses only XX for example, class Test: def __som__(self): ... def som(self): ... What does "__XX__" make the method different from XX? Thanks in advance The form __method__ is reserved for internal methods also known as magic methods. In general you must not name your own methods or attributes __XX__ because the core of Python reserves all rights on the __*__ naming schema. Some well know magic methods are __init__, __getattr__, __add__ etc. You can find a complete lists in the Python language reference. Christian -- http://mail.python.org/mailman/listinfo/python-list
F2PY ?? Has anyone worked with the F2PY generator?
To All, Has anyone worked with the F2PY generator? This is something that is supposedly built within numpy and scipy for the Python environment. I was wondering if anyone has encountered any issues with this environment?? This is important to find the answers to these questions. Thanks, David Blubaugh This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does the command "ls" in some doctest files come from ?
Le Mon, 08 Sep 2008 12:51:04 +, Steven D'Aprano a écrit :
> On Mon, 08 Sep 2008 12:15:15 +, KLEIN Stéphane wrote:
>
>> Hi,
>>
>> for example, in http://svn.zope.org/zc.buildout/trunk/src/zc/buildout/
>> tests.py?rev=89831&view=auto test file, there is this doctests :
>
> [snip]
>
>> >>> ls('develop-eggs')
>
>
>> I wonder where does the "ls('develop-eggs')" command come from ?
>>
>> It is doctest buildin command ?
>
> Easy to find out: import doctest and see for yourself:
>
import doctest
doctest.ls
> Traceback (most recent call last):
> File "", line 1, in
> AttributeError: 'module' object has no attribute 'ls'
>
> You found the ls() function in a docstring from Zope. The doctest seems
> to be testing ls(). That suggests to me that ls() is defined in Zope,
> not doctest.
Well, ls() is one test utility function defined in zc.buildout.testing
module. This module contain many utility function like mkdir, ls, cat...
> Why do you ask?
I'm curious... I've seen this utility and I would like to know how can I
use it.
Regards,
Stephane
--
http://mail.python.org/mailman/listinfo/python-list
Re: class(object) and (type)??
Subclassing 'object' makes the class new-style as opposed to old-style. object is the ultimate superclass of all new-style classes. Old-style classes are deprecated and will be removed in Python 3.0, but they're currently the default for backward-compatibility reasons. See http://docs.python.org/ref/node33.html for more info. - Chris On Mon, Sep 8, 2008 at 2:35 PM, AON LAZIO <[EMAIL PROTECTED]> wrote: > Hi again pythoners, > I notice in the class of a code having (object) and (type) attached to > the name of the class. > I know that in other cases, that means the class inherits methods and > properties from other but > In this case, what does it mean? > For example, > > class PY(object): > def __init__(self): > ... > > class PO(type): > def __init__(self): > ... > What do "object" and "type" mean? > > Thanks in advance > > Aonlazio > > -- > http://mail.python.org/mailman/listinfo/python-list > -- Follow the path of the Iguana... http://rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Numeric literal syntax
On Thu, Sep 4, 2008 at 10:22 AM, Alexander Schmolck <[EMAIL PROTECTED]> wrote: > > It's amazing that after over half a century of computing we still can't denote > numbers with more than 4 digits readably in the vast majority of contexts. > I agree. So did Forth's early designers. That is why Forth's number parser considers a word that starts with a number and has embedded punctuation to be a 32 bit integer, and simply ignores the punctuation. I haven't used Forth in years, but it seems a neat solution to the problem of decoding a long string of numbers: let the user put in whatever they want, the parser ignores it. I usually used a comma (with no surrounding whitespace of course), but it was your choice. You could also do this in whatever base you were working in, so you could punctuate a 32 bit hex number to correspond to the bit fields inside it. Of course not applicable to Python. -- Tom Harris -- http://mail.python.org/mailman/listinfo/python-list
Re: wxPython problem
Peter Anderson wrote:
Stef Mientki said: In PyScripter, you should run wxPython in the plain
remote machine (not the wxPython remote),and you should set "reset
before run flag" or reset the remote machine each time yourself.
Stef,
Thanks for the help! It has taken several hours to find and install the
correct version of Rpyc (which is required to run the remote Python
engine but it now seems to be working fine. And the "Reinitialise the
Python engine {Alt]+[F2]" does need to be done between script runs.
Given all that, the script now runs multiple times in PyScripter. The
script still only runs ONCE in IDLE but I can live with that.
In case others find this message from a search; I am using Python 2.5.2
and it requires rpyc-2.60.zip from the Rpyc download page (see
http://rpyc.wikispaces.com/ click on the "Download" link and make sure
you select the "main" link under the "Packages" column at Sourceforge.
You will be shown a list of Rpyc versions. For Python 2.5.2 choose
Relese "2.60". This will save you the several hours its cost me.
Thanks again Stef.
Regards,
Peter
wxPython never runs well in a program running under Tk, such as IDLE.
Something about competing GUI's. If you want a replacement, you can try
pycrust or one of its brethren, which ship with wxpython.
Paul Probert
--
http://mail.python.org/mailman/listinfo/python-list
RE: F2PY ?? Has anyone worked with the F2PY generator?
Pauli,
Yes, I am utilizing the windows environment. I cannot install f2py.
I obtain the following error when I try to execute the setup.py file
within the f2py folder located within the numpy master folder:
Warning: Assuming default configuration
(lib\parser/{setup_parser,setup}.py was not found)
Appending f2py.lib.parser configuration to f2py.lib
Ignoring attempt to set 'name' (from 'f2py.lib' to 'f2py.lib.parser')
Warning: Assuming default configuration
(lib\extgen/{setup_extgen,setup}.py was not found)
Appending f2py.lib.extgen configuration to f2py.lib
Ignoring attempt to set 'name' (from 'f2py.lib' to 'f2py.lib.extgen')
Appending f2py.lib configuration to f2py
Ignoring attempt to set 'name' (from 'f2py' to 'f2py.lib')
F2PY Version 2_4423
Traceback (most recent call last):
File "C:\Python25\Lib\site-packages\numpy\f2py\setup.py", line 130, in
**config)
TypeError: setup() got multiple values for keyword argument 'version'
>>>
I do not know as to how to fix the multiple values for version??
PLEASE HELP!!!
David Blubaugh
-Original Message-
From: Blubaugh, David A.
Sent: Monday, September 08, 2008 6:04 PM
To: 'python-list@python.org'
Subject: F2PY ?? Has anyone worked with the F2PY generator?
To All,
Has anyone worked with the F2PY generator? This is something that is
supposedly built within numpy and scipy for the Python environment. I
was wondering if anyone has encountered any issues with this
environment?? This is important to find the answers to these questions.
Thanks,
David Blubaugh
This e-mail transmission contains information that is confidential and may be
privileged. It is intended only for the addressee(s) named above. If you
receive
this e-mail in error, please do not read, copy or disseminate it in any manner.
If you are not the intended recipient, any disclosure, copying, distribution or
use of the contents of this information is prohibited. Please reply to the
message immediately by informing the sender that the message was misdirected.
After replying, please erase it from your computer system. Your assistance in
correcting this error is appreciated.
--
http://mail.python.org/mailman/listinfo/python-list
Re: lacking follow-through
Eric Wertman wrote: Perhaps the wrong idea of what the group is. I would have thought that if one had a sufficiently developed idea and wanted to have it / formally/ rejected, rather than merely sniped at, then writting a PEP would be more apposite than posting to c.l.py. It's fine to post your not sufficiently developed ideas here merely to have them discussed. But I don't know what makes you feel that you, or your ideas, are /entitled/ to any response at all, much less "follow-through." To expand on this a little bit, I've been subscribed to this group for a couple of months, but there seems to be a bit more gray area between what would go to a 'python-dev' group and a 'python-user' group. Long debates about language features and abstract ideas would appeal to the former, but not the latter. Certainly I fall into the user category.. I'm pretty happy with python, and generally just adjust to it's design and features, rather than spend lots of time on whether they are 'right' or could be 'better'. /shrug Actually, python-dev is for the concrete development of Python. Releases, bugs, and occasionally design discussions for relevant features. Long debates about potential features and abstract ideas belong either here or python-ideas. -- 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: Updating python dictionary
On Sep 9, 6:12 am, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: [big snip] > In the interests of academia (although this isn't homework :)) I'll > answer some of those questions: Understanding your own requirements is , I would have thought, not much to do with "academia" but a very practical idea. > > - Yes, the mapping dict doesn't necessarily have the same number of > entries as the my_dict. It may have less than it or more than it. What behaviour do you expect when there is a key in my_dict that is not in the mapping? > - There will never be dupes of key or value in the mapping. Though > there maybe in my_dict. If there are ever any dupes of a key in a Python dict object, it will be the end of civilisation as we know it. How are you are guaranteeing that there are no value dupes in your mapping? What are the consequences if a dupe sneaks in? > > And, for extra credit, it may be useful to be able to 'translate' the > my_dict back again using the same mapping_dict. ie, using the values > in mapping dict as the new keys in my_dict, and the keys as the new > values. "... as the new values" of what? my_dict?? Don't you mean something like "using the values in mapping dict as the keys in reverse_mapping, and the keys as the values in reverse_mapping"? Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does the command "ls" in some doctest files come from ?
On Mon, 08 Sep 2008 22:04:29 +, KLEIN Stéphane wrote:
>> You found the ls() function in a docstring from Zope. The doctest seems
>> to be testing ls(). That suggests to me that ls() is defined in Zope,
>> not doctest.
>
> Well, ls() is one test utility function defined in zc.buildout.testing
> module. This module contain many utility function like mkdir, ls, cat...
>
>
>> Why do you ask?
>
> I'm curious... I've seen this utility and I would like to know how can I
> use it.
Untested:
from zc.buildout.testing import ls
ls("somefile")
--
Steven
--
http://mail.python.org/mailman/listinfo/python-list
Re: Coming from .NET and VB and C
BigTable looks great! There's a 3% performance hit for these types of databases. However it makes up for it in other ways. "Dive Into Python" seems to suggest there is less busy work, but I am still looking into the GUI components of Python. Say, a grid of 10x10 tiles of PNGs. ___ > have no preference with MySQL or SQL, stored procedures or ad-hoc > queries. Please note: MySQL is specific relational database management system (RDBMs), which uses a dialect of structured query language (SQL). SQL by itself is just a semi-standardized query language -- and can technically be used to access non-relational DBMS (if any such are still in use), though the query processor would be a pain to program (map a relational join into a hierarchical DBMS schema? ugh). > SO, I'm interested in using my Google App space (free 500MB) to > develop a quick database application. Using Python. I found "Dive > Into Python" which I will be reading shortly. So one question: what RDBMs are supported in that space? -- WulfraedDennis Lee Bieber KD6MOG -- http://mail.python.org/mailman/listinfo/python-list
Re: F2PY ?? Has anyone worked with the F2PY generator?
On Sep 8, 7:19 pm, "Blubaugh, David A." <[EMAIL PROTECTED]> wrote: > Pauli, > > Yes, I am utilizing the windows environment. I cannot install f2py. > > I obtain the following error when I try to execute the setup.py file > within the f2py folder located within the numpy master folder: You shouldn't need to do this. The installation of numpy puts f2py.py in your Scripts folder. explicitly: C:\Python25\Python C:\Python25\Scripts\f2py.py -- http://mail.python.org/mailman/listinfo/python-list
