Python-URL! - weekly Python news and links (Nov 10)
python-url at phaseit.net
Tue Nov 10 18:19:53 CET 2009
QOTW: "Don't get me wrong - innovation often comes from scratching ones
personal itch. But you seem to be suffering from a rather bad case of
neurodermatitis." - Diez B. Roggisch, on ... well, personal style in
Why aren't lists usable as dictionary keys? What do you mean, "hashable"?
`x == None` or `x is None` -- which one is the right way?
At Microsoft, they performed empirical research about common
software engineering assumptions: "high test coverage is better",
"write test code first", "use assertions", and others:
The best way to populate a list of size N:
A new variant of an old problem: I got a single check from my customer -
which ones among all pending invoices did he intend to pay?
How to test code that uses urllib without depending on external resources?
Singletons are hard to test too:
How to use Filters in the logging module:
Delete items from a list that match a certain pattern:
What is the correct way to port codecs.open to python 3.1?
py2exe, cx_freeze, py2app: a comparison
How to cancel a thread from another one:
Why does "help(import)" not work?
Everything Python-related you want is probably one or two clicks away in
Python.org'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" 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
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.
The Cookbook is a collaborative effort to capture useful and
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
del.icio.us 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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