Matthew Wilson <m...@tplus1.com> writes:
> Is there already a tool in the standard library to let me walk up from
> a subdirectory to the top of my file system?
Sounds like a pretty seldom-needed task, with an implementation simple
using the existing standard library parts.
> In other words, I'm looking for something like:
>
> >>> for x in walkup('/home/matt/projects'):
> ... print(x)
> /home/matt/projects
> /home/matt
> /home
> /
>>> import os.path
>>> def walkup(path):
... at_top = False
... while not at_top:
... yield path
... parent_path = os.path.dirname(path)
... if parent_path == path:
... at_top = True
... else:
... path = parent_path
...
>>> for dir in walkup('/home/matt/projects'):
... print dir
...
/home/matt/projects
/home/matt
/home
/
> I know I could build something like this with various os.path
> components, but I'm hoping I don't have to.
Not every simple function belongs in the standard library :-)
--
\ “Ubi dubium, ibi libertas.” (“Where there is doubt, there is |
`\ freedom.”) |
_o__) |
Ben Finney
--
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