Python-URL! - weekly Python news and links (Aug 15)

Gabriel Genellina python-url at
Sat Aug 15 19:23:37 CEST 2009

QOTW:  "They questioned my competence and that made her very sad." - Roger
Wallis,expert witness for Pirate Bay, on his wife

    unicode(s) is, surprisingly, MUCH faster (for certain encodings) than

    It is not possible to overload a compound "< <" operator (as in:
    a < x < b):

    Automatic join of "consecutive" " string " "literals": bug or feature?

    Also, unrecognized escape sequences in string literals stay in the
    string: bug or feature?

    Restricting dictionary keys to those objects explicitely defining
    __eq__ / __hash__ may be useful in certain cases:

    How to find out in which module an instance was created?

    Monkey-patching an instance to make it callable (without altering other
    instances of the same class):

    reload() and the 'from ... import ...' form of the import statement:

    Several recipes to extract unique elements from a list:

    All those __double_underscored__ names are confusing - why do they exist?

Everything Python-related you want is probably one or two clicks away in
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 enthusiasts":
    The Python Magazine is a technical monthly devoted to Python:

    Readers have recommended the "Planet" sites:

    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 commentary.
    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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