Python-URL! - weekly Python news and links (Mar 28)

Gabriel Genellina python-url at
Sat Mar 28 13:57:15 CET 2009

QOTW:  "Knowing C++ does tend to be a bit of a handicap, but I think
any competent programmer could learn Python." - Grant Edwards
    Introducing Python to others - which amazing features to show?
    Do deep inheritance trees degrade efficiency?
    Don't use "is" to compare bound methods:
    Using a dictionary to represent a "sparse" mapping:
    From linked lists to state machines: different ways to represent the
    same structure:
    The next() builtin for iterators may take a not-so-well-known second
    Python as a shell scripting language:
    What does "64-bit Python" mean exactly?
    The best way to check for an empty list:
    Garbage collection, cyclic references and finalizers discussed:
    Why methods like x.tolist() aren't widely used (and we use list(x)
    instead) http:
    Relative imports are *not* the same as relative #include in C/C++:
    Doing multiple calls to Py_Initialize/Py_Finalize isn't safe:
    3.1a1 file I/O is much faster than 3.0, and this greatly impacts pickle
    The decline of c.l.p over the years (according to some!)
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 enthusiats":
    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.

    The somewhat older Vaults of Parnassus ambitiously collects references
    to all sorts of Python resources.

    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.

    *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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