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Mon Dec 29 00:16:22 CET 2008 · http://mail.python.org/pipermail/python-dev/2008-December/084630.html

>     Martin> I don't think any change is necessary. os.path.commonprefix
>     Martin> works just fine on path components:
>     ...
> 
> Ummm...
> 
>     >>> os.path.commonprefix(["/export/home", "/etc/passwd"])
>     '/e'

This calls it with strings, not with path components. As I said, it
works fine for path components:

py> os.path.commonprefix([f.split('/') for f in ["/export/home",
"/etc/passwd"]])
['']

> See <http://bugs.python.org/issue4755> for what I think is a function with
> more predictable behavior given that we are discussing paths and not just
> strings.

See above: the function works for lists as well.

Regards,
Martin

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[Python-Dev] A wart which should have been repaired in 3.0?