[Python-ideas] os.path.isparent and os.path.ischild

[Ben Finney]

Paul Colomiets <paul at colomiets.name> writes:

> Hi,
>
> On Fri, Jul 8, 2011 at 2:08 AM, Giampaolo Rodolà <g.rodola at gmail.com> wrote:
> >>>> isparent('/a', '/a/b')
> > True
> >>>> ischild('/a/b', '/a')
> > True
>
> Do you mean:
>
> >>> '/a' == dirname('/a/b')
> True
> >>> dirname('/a/b') == '/a'
> True
>
> I do not think it's harder to write.

I think this behaviour is also part of the expectation::

    >>> path = '/a/b/c/d'

    >>> isparent('/a', path)
    True
    >>> isparent('/a/b', path)
    True
    >>> isparent('/a/b/z', path)
    False

    >>> ischild(path, '/a')
    True
    >>> ischild(path, '/a/b')
    True
    >>> ischild(path, '/a/b/z')
    False

    >>> '/a' == dirname(path)
    False
    >>> '/a/b' == dirname(path)
    False
    >>> '/a/b/z' == dirname(path)
    False

-- 
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Ben Finney