Mailman 3 September 2008 - Python-Dev

Re: [Python-Dev] [Python-3000] bsddb finished for 2.6/3.0 (and "<class 'BytesWarning'>: str() on a bytes instance")
by Barry Warsaw Sept. 4, 2008

Sept. 4, 2008

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sep 3, 2008, at 7:01 PM, Jesus Cea wrote: > Barry Warsaw wrote: >> and I know Brett agrees, so that's it. On IRC, I've just asked >> Benjamin >> to do the honors for 3.0 and Brett will add the deprecations for 2.6. > > I just committed the fix for bsddb testsuite in Python 3.0 branch: > http://www.python.org/dev/buildbot/3.0.stable/changes/2687 > > Can I do anything to revert this decision?. If not, what … [View More]

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Further PEP 8 compliance issues in threading and multiprocessing
by Nick Coghlan Sept. 3, 2008

Sept. 3, 2008

I've been taking a close look at the API for multiprocessing and threading, and have discovered a somewhat strange pattern that occurs multiple times in both interfaces: factory functions with names that start with a capital letter so they look like they're actually a class. At first I thought it was a quirk of the multiprocessing implementation, but then I discovered that the threading module also does it for all of the synchronisation objects as well as threading.Timer, with examples like: … [View More]

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fileobj.read(float): warning or error?
by Victor Stinner Sept. 3, 2008

Sept. 3, 2008

Hi, Since Python 2.4 (maybe 2.2 or older), fileobj.read(4.2) displays an error and works as fileobj.read(4). >>> i=open('/etc/issue') >>> i.read(4.2) __main__:1: DeprecationWarning: integer argument expected, got float It should raises an error instead of a warning, it has no sense to read a partial byte :-) But that should breaks some applications? Well, the real problem is os.urandom(4.2) which goes to an unlimited loop: while len(bytes) < n: bytes += read(… [View More]

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Re: [Python-Dev] Add python.exe to PATH environment variable
by Curt Hagenlocher Sept. 3, 2008

Sept. 3, 2008

One of these days, I'm actually going to remember that I need to click "Reply All" when posting to this list... . Sorry for the duplicate, Greg. On Tue, Sep 2, 2008 at 6:45 PM, Greg Ewing <greg.ewing(a)canterbury.ac.nz> wrote: > > A better way would be to start a command process with > the Python directory added to PATH just for that > process. This is similar to what Visual Studio or the Windows SDK do to give you a command prompt with the PATH and other environmental … [View More]

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2.6b3 Windows installers
by M.-A. Lemburg Sept. 3, 2008

Sept. 3, 2008

The download page doesn't list any Windows installer for 2.6b3: http://www.python.org/download/releases/2.6/ I suppose this is due to Martin building the installers and him not be available at the moment. Since Python on Windows will likely only get very few beta testers without a Windows installer build, I'd suggest to postpone the RC1 release that's planned for tomorrow to get more feedback for the Windows builds. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly … [View More]

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Re: [Python-Dev] Things to Know About Super
by average Sept. 2, 2008

Sept. 2, 2008

It seems that the frustration with super revolves around how Python currently conflates (as well as many users) two very different types of inheritance, both "is-a" and "has-a" (or compositional) inheritance. Unfortunately, Python assists this confusion because the language doesn't provide a distinct enough way to differentiate between them. For the former (i.e. is-a inheritance), users should not have to explicitly make a call to the super class (via super() or otherwise)--this should be … [View More]

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Proposal: add odict to collections
by Armin Ronacher Sept. 1, 2008

Sept. 1, 2008

Hi, I noticed lately that quite a few projects are implementing their own subclasses of `dict` that retain the order of the key/value pairs. However half of the implementations I came across are not implementing the whole dict interface which leads to weird bugs, also the performance of a Python implementation is not that great. To fight that problem I want to proposed a new class in "collections" called odict which is a dict that keeps the items sorted, similar to a PHP array. The interface … [View More]

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