On 2011-07-29, Dennis Lee Bieber <wlfr...@ix.netcom.com> wrote:
> On Thu, 28 Jul 2011 15:31:43 -0600, Ian Kelly
> <ian.g.ke...@gmail.com> declaimed the following in
> gmane.comp.python.general:
>
>> Using os.sep doesn't make it cross-platform. On Windows:
>>
>> >>> os.path.split(r'C:\windows')
>> ('C:\\', 'windows')
>> >>> os.path.split(r'C:/windows')
>> ('C:/', 'windows')
>> >>> r'C:\windows'.split(os.sep)
>> ['C:', 'windows']
>> >>> r'C:/windows'.split(os.sep)
>> ['C:/windows']
>
> Fine... So normpath it first...
>
>>>> os.path.normpath(r'C:/windows').split(os.sep)
> ['C:', 'windows']
>>>>
Here's a solution adapted from an initially recursive attempt.
The tests are currently somewhat gnarled to avoid displaying
os.path.sep. A simpler solution probably reimplement os.path.split,
an inconvenient implementation detail.
import os
def split_path(path):
"""Split path into a series of directory names, and return it
as a list.
If path is absolute, the first element in the list will be be
os.path.sep.
>>> p = split_path('/smith/jones')
>>> p[0] == os.path.sep
True
>>> p[1:]
['smith', 'jones']
>>> split_path('smith/jones')
['smith', 'jones']
>>> split_path('')
[]
>>> p = split_path('/')
>>> p[0] == os.path.sep
True
>>> len(p)
1
"""
head, tail = os.path.split(path)
retval = []
while tail != '':
retval.append(tail)
head, tail = os.path.split(head)
else:
if os.path.isabs(path):
retval.append(os.path.sep)
return list(reversed(retval))
if __name__ == '__main__':
import doctest
doctest.testmod()
--
Neil Cerutti
--
http://mail.python.org/mailman/listinfo/python-list
