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Added support for negative indexes to PurePath.parents (GH-21799)

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This commit also fixes up some of the overlapping documentation changed
in bpo-35498, which added support for indexing with slices.

Fixes bpo-21041.
https://bugs.python.org/issue21041

Co-authored-by: Paul Ganssle <p.ganssle@gmail.com>
Co-authored-by: Rémi Lapeyre <remi.lapeyre@henki.fr>
This commit is contained in:
Yaroslav Pankovych 2020-11-23 22:06:22 +02:00 • committed by GitHub
parent ffae93248a
commit 79d2e62c00
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7 changed files with 15 additions and 5 deletions
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5
Lib/test/test_pathlib.py
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@ -440,6 +440,9 @@ class _BasePurePathTest(object):
self.assertEqual(par[0], P('a/b'))
self.assertEqual(par[1], P('a'))
self.assertEqual(par[2], P('.'))
self.assertEqual(par[-1], P('.'))
self.assertEqual(par[-2], P('a'))
self.assertEqual(par[-3], P('a/b'))
self.assertEqual(par[0:1], (P('a/b'),))
self.assertEqual(par[:2], (P('a/b'), P('a')))
self.assertEqual(par[:-1], (P('a/b'), P('a')))
@ -448,7 +451,7 @@ class _BasePurePathTest(object):
self.assertEqual(par[::-1], (P('.'), P('a'), P('a/b')))
self.assertEqual(list(par), [P('a/b'), P('a'), P('.')])
with self.assertRaises(IndexError):
par[-1]
par[-4]
with self.assertRaises(IndexError):
par[3]
with self.assertRaises(TypeError):