[issue21041] pathlib.PurePath.parents rejects negative indexes

[Yaroslav Pankovych]

Yaroslav Pankovych <flower.moor at gmail.com> added the comment:

That makes sense, but should we have this behaviour only for negative indices? 

We'll end up with something lie:

path.parents[len(path.parents) - 1] != path.parents[-1]

I think that is should be consistent regardless of negative/positive indices.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue21041>
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