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Re: list comprehension to do os.path.split_all ?

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On 28.07.2011 22:44, Ian Kelly wrote:
> On Thu, Jul 28, 2011 at 2:18 PM, gry<georgeryoung@gmail.com>  wrote:
>> [python 2.7] I have a (linux) pathname that I'd like to split
>> completely into a list of components, e.g.:
>>    '/home/gyoung/hacks/pathhack/foo.py'  -->    ['home', 'gyoung',
>> 'hacks', 'pathhack', 'foo.py']
>>
>> os.path.split gives me a tuple of dirname,basename, but there's no
>> os.path.split_all function.
>>
>> I expect I can do this with some simple loop, but I have such faith in
>> the wonderfulness of list comprehensions, that it seems like there
>> should be a way to use them for an elegant solution of my problem.
>> I can't quite work it out.  Any brilliant ideas?   (or other elegant
>> solutions to the problem?)
>
> path = '/home/gyoung/hacks/pathhack/foo.py'
> parts = [part for path, part in iter(lambda: os.path.split(path), ('/', ''))]
> parts.reverse()
> print parts
>
> But that's horrendously ugly.  Just write a generator with a while
> loop or something.


pathname = '/home/gyoung/hacks/pathhack/foo.py'
parts = [part for part in pathname.split(os.path.sep) if part]
print parts

['home', 'gyoung', 'hacks', 'pathhack', 'foo.py']

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Thread

list comprehension to do os.path.split_all ? gry <georgeryoung@gmail.com> - 2011-07-28 13:18 -0700
  Re: list comprehension to do os.path.split_all ? Stefaan Himpe <stefaan.himpe@gmail.com> - 2011-07-28 22:32 +0200
  Re: list comprehension to do os.path.split_all ? Neil Cerutti <neilc@norwich.edu> - 2011-07-28 20:36 +0000
    Re: list comprehension to do os.path.split_all ? Ethan Furman <ethan@stoneleaf.us> - 2011-07-28 14:03 -0700
  Re: list comprehension to do os.path.split_all ? Alan Meyer <ameyer2@yahoo.com> - 2011-07-28 16:40 -0400
    Re: list comprehension to do os.path.split_all ? TheSaint <no@nowhere.net.no> - 2011-07-29 22:29 +0800
  Re: list comprehension to do os.path.split_all ? Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-28 14:44 -0600
  Re: list comprehension to do os.path.split_all ? Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-28 14:47 -0600
  Re: list comprehension to do os.path.split_all ? Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-28 15:04 -0600
  Re: list comprehension to do os.path.split_all ? Alexander Kapps <alex.kapps@web.de> - 2011-07-28 23:06 +0200
  Re: list comprehension to do os.path.split_all ? Emile van Sebille <emile@fenx.com> - 2011-07-28 14:15 -0700
  Re: list comprehension to do os.path.split_all ? Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-28 15:31 -0600
    Re: list comprehension to do os.path.split_all ? Carl Banks <pavlovevidence@gmail.com> - 2011-07-29 12:30 -0700
      Re: list comprehension to do os.path.split_all ? Alexander Kapps <alex.kapps@web.de> - 2011-07-29 22:22 +0200
      Re: list comprehension to do os.path.split_all ? Michael Poeltl <michael.poeltl@univie.ac.at> - 2011-07-30 02:23 +0200
      Re: list comprehension to do os.path.split_all ? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-30 10:55 +1000
      Re: list comprehension to do os.path.split_all ? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-07-29 22:17 -0700
      Re: list comprehension to do os.path.split_all ? Michael Poeltl <michael.poeltl@univie.ac.at> - 2011-07-31 07:40 +0200
  Re: list comprehension to do os.path.split_all ? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-07-28 21:15 -0700
    Re: list comprehension to do os.path.split_all ? Neil Cerutti <neilc@norwich.edu> - 2011-07-29 12:40 +0000
      Re: list comprehension to do os.path.split_all ? Hrvoje Niksic <hniksic@xemacs.org> - 2011-07-31 08:42 +0200

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