Egor Bolonev wrote:
"Stephen Thorne" <[EMAIL PROTECTED]> ÑÐÐÐÑÐÐ/ÑÐÐÐÑÐÐÐ Ð ÐÐÐÐÑÑÑÑ ÑÐÐÐÑÑÑÐÐ: news:[EMAIL PROTECTED] On Thu, 13 Jan 2005 15:55:10 +1000, Egor Bolonev <[EMAIL PROTECTED]> wrote:
how to get rid of 'for' operator in the code?
import os, os.path
def _test(): src = 'C:\\Documents and Settings\\ÐÐÐÑ\\My Documents\\My Music\\'
for i in [x for x in os.listdir(src) if os.path.isfile(os.path.join(src, x)) and len(x.split('.')) > 1 and x.split('.')[-1].lower() == 'm3u']: os.remove(os.path.join(src, i))
if __name__ == '__main__': _test()
import glob for x in glob.glob("*.m3u"): os.remove(x)
i want to wipe out 'for x in []: f(x)' using map, lambda, reduce, filter and List
Comprehensions [x for x in []]
just don't get how to add string to all elements of list
Any statement of the form
for i in [x for x in something]:
can be rewritten as
for i in something:
Note that this doesn't mean you never want to iterate over a list comprehension. It's the easiest way, for example, to iterate over the first item of each list in a list of lists:
for i in [x[0] for x in something]:
regards Steve -- Steve Holden http://www.holdenweb.com/ Python Web Programming http://pydish.holdenweb.com/ Holden Web LLC +1 703 861 4237 +1 800 494 3119
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