Python-URL! - weekly Python news and links (Oct 25)

Cameron Laird claird.visiprise at
Sun Oct 25 17:51:46 CET 2009

QOTW:  "It was intended to be understood, not copied." - Dave Angel
on a characteristic of didactic examples

   Altering the default character encoding (sys.setdefaultencoding) is
   a  good idea:

   How come id() returns the same thing for different objects?

   Some iterators share state, while others don't - why?

   sum(list_of_strings) is explicitely forbidden - why?

   Neither __getattribute__ nor metaclasses can be used to implement
   __special__ methods:

   How to compute a running median efficiently:

   Several details on how str.split() works are not adequately

   How to implement a set that uses a custom function to determine
   membership (not the element's __eq__):

   Generators explained as simply as possible:

   Proposal to add slice notation [start:stop:step] to iterators/

   An encoding problem involves an XML document, HTTP headers, and

   The `while True:` idiom makes the longest thread so far:

   "Homework" questions: what should be our reaction?

   Why is python so sad :( ?

   Guido's proposes to freeze language grammar and semantics for

Everything Python-related you want is probably one or two clicks away
these pages:'s Python Language Website is the traditional
   center of Pythonia
   Notice especially the master FAQ

   PythonWare complements the digest you're reading with the
   marvelous daily python url

   Just beginning with Python?  This page is a great place to start:

   The Python Papers aims to publish "the efforts of Python
   The Python Magazine is a technical monthly devoted to Python:

   Readers have recommended the "Planet" site:

   comp.lang.python.announce announces new Python software.  Be
   sure to scan this newsgroup weekly.

   Python411 indexes "podcasts ... to help people learn Python ..."
   Updates appear more-than-weekly:

   The Python Package Index catalogues packages.

   Much of Python's real work takes place on Special-Interest Group
   mailing lists

   Python Success Stories--from air-traffic control to on-line
   match-making--can inspire you or decision-makers to whom you're
   subject with a vision of what the language makes practical.

   The Python Software Foundation (PSF) has replaced the Python
   Consortium as an independent nexus of activity.  It has official
   responsibility for Python's development and maintenance.
   Among the ways you can support PSF is with a donation.

   The Summary of Python Tracker Issues is an automatically generated
   report summarizing new bugs, closed ones, and patch submissions.

   Although unmaintained since 2002, the Cetus collection of Python
   hyperlinks retains a few gems.

   Python FAQTS

   The Cookbook is a collaborative effort to capture useful and
   interesting recipes.

   Many Python conferences around the world are in preparation.
   Watch this space for links to them.

   Among several Python-oriented RSS/RDF feeds available, see:
   For more, see:
   The old Python "To-Do List" now lives principally in a
   SourceForge reincarnation. presents an intriguing approach to reference
   It already aggregates quite a bit of Python intelligence.

   Enjoy the *Python Magazine*.

   *Py: the Journal of the Python Language*

   Dr.Dobb's Portal is another source of Python news and articles:
   and Python articles regularly appear at IBM DeveloperWorks:

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