[Python-Dev] Changes to PEP 327: Decimal data type (original) (raw)

Edward Loper edloper at gradient.cis.upenn.edu
Thu Mar 18 12:11:48 EST 2004

I just did an experiment which involved running the Python script appended below over the Library Reference index. The results were: [...]

I ran a similar experiment, but counted the number of modules that define each type of function (since presumably most modules are internally consistent). The numbers are:

Total modules defining functions: 985 under_score+lowercase : 44% mixedCase+lowercase : 22% lowercase only : 16% InitialCaps : 10% mixedCase only : 2% under_score only : 2%

So underscore is most common; but mixedCase has a definite presence.

-Edward

p.s., I'm definitely +1 on making a stronger statement in the style guide. Consistency is good.

=========================================================================

Count function name styles from the Python Library Reference Index.

import re, sys

InitialCaps = re.compile(r"def\s*_*[A-Z0-9][A-Za-z0-9]_\s(") mixedCase = re.compile(r"def\s*[a-z0-9]+[A-Z][A-Za-z0-9]+\s(") lowercase = re.compile(r"def\s*_*[a-z0-9]+\s(") under_score = re.compile(r"def\s*[A-Za-z0-9]+[A-Za-z0-9]+_\s(") anydef = re.compile(r"def\s+.")

count = {'InitialCaps':0, 'mixedCase only':0, 'lowercase only':0, 'under_score only':0, 'mixedCase+lowercase':0, 'anydef':0, 'under_score+lowercase':0}

for file in sys.argv[1:]: s = open(file).read() if InitialCaps.search(s): count['InitialCaps'] += 1 elif mixedCase.search(s) and lowercase.search(s): count['mixedCase+lowercase'] += 1 elif under_score.search(s) and lowercase.search(s): count['under_score+lowercase'] += 1 elif mixedCase.search(s): count['mixedCase only'] += 1 elif under_score.search(s): count['under_score only'] += 1 elif lowercase.search(s): count['lowercase only'] += 1 else: if anydef.search(s): print 'huh', anydef.search(s).group() if anydef.search(s): count['anydef'] += 1 total = count['anydef'] print 'Total files defining functions:', total items = count.items() items.sort(lambda a,b:cmp(b[1],a[1])) for (key, val) in items: print '%-21s : %d%%' % (key, 100*val/total)

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