Author akira
Recipients akira
Date 2014-03-23.22:16:50
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Message-id <1395613011.22.0.29152070109.issue21041@psf.upfronthosting.co.za>
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Content
`pathlib.PurePath.parents` is a sequence [1] but it rejects negative indexes:

  >>> from pathlib import PurePath
  >>> PurePath('a/b/c').parents[-2]
  Traceback (most recent call last):
  ...
  IndexError: -2

Sequences in Python interpret negative indexes as `len(seq) + i` [2]

I've included the patch that fixes the issue and adds corresponding tests. No documentation changes are needed.

[1]: http://docs.python.org/3/library/pathlib#pathlib.PurePath.parents
[2]: http://docs.python.org/3/library/stdtypes.html#sequence-types-list-tuple-range
History
Date User Action Args
2014-03-23 22:16:51akirasetrecipients: + akira
2014-03-23 22:16:51akirasetmessageid: <1395613011.22.0.29152070109.issue21041@psf.upfronthosting.co.za>
2014-03-23 22:16:51akiralinkissue21041 messages
2014-03-23 22:16:50akiracreate