Mailman 3 December 2005 - Python-Dev

Re: [Python-Dev] PEP 8 updates/clarifications
by Robert Brewer Dec. 10, 2005

Dec. 10, 2005

Barry Warsaw wrote: > Again, I'd say something like: Since your exceptions > will be classes, use the CapWord naming convention for > classes to name your exceptions. It is recommended > that your exception class end in the word "Error". Unless, of course, your exception is not an error (like the aforementioned HTTPRedirect). ;) Robert Brewer System Architect Amor Ministries fumanchu(a)amor.org

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Re: [Python-Dev] imaplib module with IDLE implememted via threads
by Guido van Rossum Dec. 9, 2005

Dec. 9, 2005

I hope you'll check this into SVN too? --Guido On 12/8/05, Piers Lauder <piers(a)cs.usyd.edu.au> wrote: > If anyone needs the IMAP4 extension "IDLE", there is a copy of an enhanced > imaplib module available for download here: > > http://www.cs.usyd.edu.au/~piers/python/imaplib.html > > This is an IMAP4rev1 mail protocol client class using threads for parallel > operation. It is modified from the non-threaded version included in the > standard Python … [View More]

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Documentation about Python's GC, python-dev list messages referenced in Modules/gcmodule.c not reachable anymore
by Weber, Gregoire Dec. 9, 2005

Dec. 9, 2005

Hi All, Hi Neil, While searching documentation about Pythons GC and it's behaviour I found references to the python-dev list in ``Modules/gcmodule.c``. But unfortunately the links to the list do not work anymore. May someone give me a hint how to find the messages (2. to 4. below). Is the article (Link 1. below) up to date or were there major changes in the GC strategies since year 2000? http://svn.python.org/projects/python/trunk/Modules/gcmodule.c 1. http://www.arctrix.com/nas/python/… [View More]

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hasattr and properties
by Thomas Lotze Dec. 9, 2005

Dec. 9, 2005

Hi, I've noticed some behaviour of hasattr when used on properties which I'm inclined to call a bug, or at least unexpected behaviour: Python 2.4.2 (#1, Oct 29 2005, 13:11:33) [GCC 3.3.6 (Gentoo 3.3.6, ssp-3.3.6-1.0, pie-8.7.8)] on linux2 [...] >>> class Foo(object): ... def get(self): ... print "hi there" ... raise Exception ... bar = property(get) ... >>> hasattr(Foo, "bar") True >>> hasattr(Foo(), "bar") hi there False One would expect … [View More]

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Bug bz2.BZ2File(...).seek(0,2) + patch
by Victor STINNER Dec. 9, 2005

Dec. 9, 2005

Hi, I found a bug in bz2 python module. Example: import bz2 bz2.BZ2File("test.bz2","r") bz2.seek(0,2) assert bz2.tell() != 0 Details and *patch* at: http://sourceforge.net/tracker/index.php?func=detail&aid=1366000&group_id=5… Please CC-me for all your answers. Bye, Victor -- Victor Stinner - student at the UTBM (Belfort, France) http://www.haypocalc.com/wiki/Accueil

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Tracker anonymity
by skip＠pobox.com Dec. 8, 2005

Dec. 8, 2005

In c.l.py Paul Rubin wrote: Paul> In the old days, it was possible to post stuff to Python's Paul> sourceforge pages without logging in. That was turned off for Paul> various reasons that weren't bogus, but that didn't strike me as Paul> overwhelmingly compelling. Maybe that could be revisited, at Paul> least for the category of documentation bugs and patches. Any thoughts about maybe relaxing the login restriction? I know we had problems with anonymous … [View More]

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Re: [Python-Dev] Short-circuiting iterators
by Edward Loper Dec. 8, 2005

Dec. 8, 2005

> I had an idea this morning for a simple extension to Python's iterator > protocol that would allow the user to force an iterator to raise > StopIteration on the next call to next(). My thought was to add a new > method to iterators called stop(). There's no need to change the iterator protocol for your example use case; you could just define a simple iterator-wrapper: class InterruptableIterator: stopped = False def __init__(self, iter): self.iter = iter() … [View More]

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Re: [Python-Dev] ast-objects branch created
by Delaney, Timothy (Tim) Dec. 7, 2005

Dec. 7, 2005

Fredrik Lundh wrote: > if you check my original post, you'll find code for a new list helper > function, which would solve this in a convenient way. Yep - I thought I'd seen something like this, but couldn't find it (eventually found it by searching for Lundh ;). That's exactly what I was thinking of. However, I'm also thinking that it's worthwhile to have aliases that state that this is being done for memory management - hence the idea of _PyArena_ADD (and probably _PyArena_REMOVE, … [View More]

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Re: [Python-Dev] ast-objects branch created
by Delaney, Timothy (Tim) Dec. 7, 2005

Dec. 7, 2005

"Martin v. Löwis" wrote: > Nick Coghlan wrote: >> As Fredrik pointed out a while back, the PyObject approach doesn't >> *have* to involve manual decref operations - PyObject's come with a >> ready made arena structure, in the form of PyList. > > That doesn't really work: PyList_Append (which you would have to use) > duplicates the reference, so you would still have to decref it > explicitly. Hmm - perhaps we should have a set of Arena functions/macros e.g. … [View More]

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Broader iterable support for xmlrpclib
by skip＠pobox.com Dec. 7, 2005

Dec. 7, 2005

During the bug day Andrew Kuchling (I think) mentioned that he was working on some xmlrpclib issues. I then broached an idea I had a week or so ago to allow sets to be marshalled as XML-RPC arrays. This was met with some head scratching by those present. Forging ahead nonetheless, I then proposed the even wackier idea to simply allow all currently unsupported iterables (sets and arrays seem the most obvious candidates to me) to be marshalled as lists. After a couple messages back and forth … [View More]

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