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Extract filename from an url
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import posixpath
from urlparse import urlsplit
from urllib import unquote
except ImportError: # Python 3
from urllib.parse import urlsplit, unquote
def url2filename(url):
"""Return basename corresponding to url.
>>> print(url2filename(''))
>>> print(url2filename('')) # '/' in name
Traceback (most recent call last):
urlpath = urlsplit(url).path
basename = posixpath.basename(unquote(urlpath))
if (os.path.basename(basename) != basename or
unquote(posixpath.basename(urlpath)) != basename):
raise ValueError # reject '%2f' or 'dir%5Cbasename.ext' on Windows
return basename
if __name__=="__main__":
import doctest; doctest.testmod()
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