En Wed, 24 Mar 2010 14:58:47 -0300, <pyt...@bdurham.com> escribió:
After looking at how things are done in codecs.c and
encodings/__init__.py I think you should enumerate all modules in the
encodings package that define a getregentry function. Aliases come from
encodings.aliases.aliases.
Thanks for looking into this for me. Benjamin Kaplan made a similar
observation. My reply to him included the snippet of code we're using to
generate the actual list of encodings that our software will support
(thanks to Python's codecs and encodings modules).
I was curious as whether both methods would give the same results:
py> modules=set()
py> for name in glob.glob(os.path.join(encodings.__path__[0], "*.py")):
... name = os.path.basename(name)[:-3]
... try: mod = __import__("encodings."+name,
fromlist=['ilovepythonbutsometimesihateit'])
... except ImportError: continue
... if hasattr(mod, 'getregentry'):
... modules.add(name)
...
py> fromalias = set(encodings.aliases.aliases.values())
py> fromalias - modules
set(['tactis'])
py> modules - fromalias
set(['charmap',
'cp1006',
'cp737',
'cp856',
'cp874',
'cp875',
'idna',
'iso8859_1',
'koi8_u',
'mac_arabic',
'mac_centeuro',
'mac_croatian',
'mac_farsi',
'mac_romanian',
'palmos',
'punycode',
'raw_unicode_escape',
'string_escape',
'undefined',
'unicode_escape',
'unicode_internal',
'utf_8_sig'])
There is a missing 'tactis' encoding (?) and about twenty without alias.
--
Gabriel Genellina
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