8000 GH-101362: Omit path anchor from `pathlib.PurePath()._parts` by barneygale · Pull Request #102476 · python/cpython · GitHub
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GH-101362: Omit path anchor from pathlib.PurePath()._parts #102476

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Merged
merged 13 commits into from
Apr 9, 2023
Merged

GH-101362: Omit path anchor from pathlib.PurePath()._parts #102476

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8bf4600
GH-101362: Omit path anchor from `pathlib.PurePath()._parts`
barneygale Mar 6, 2023
e7a58c3
Add news blurb.
barneygale Mar 6, 2023
1d58aed
Rename `_parts` to `_tail` for clarity.
barneygale Mar 6, 2023
ac26f84
Merge branch 'main' into gh-101362-exclude-anchor-from-parts
barneygale Mar 10, 2023
cce5d7b
Undo some changes to _format_parsed_parts()
barneygale Mar 10, 2023
f529d51
Merge branch 'main' into gh-101362-exclude-anchor-from-parts
barneygale Apr 3, 2023
0c0f5bd
Move `str()` call out of initialiser.
barneygale Apr 3, 2023
7a4e92f
Optimize `_make_child_relpath()`
barneygale Apr 3, 2023
c8d4b38
Remove caching of `Path.parts`
barneygale Apr 3, 2023
d2a578d
Cache case-normalized string.
barneygale Apr 6, 2023
de4df7a
Rename `_make_child` back to `_make_child_relpath`
barneygale Apr 7, 2023
5a34f7e
Add comments to `PurePath.__slots__`
barneygale Apr 8, 2023
078ced9
Merge branch 'main' into gh-101362-exclude-anchor-from-parts
barneygale Apr 9, 2023
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Merge branch 'main' into gh-101362-exclude-anchor-from-parts
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@barneygale
barneygale committed Apr 9, 2023
commit 078ced9c8934d4bbb94c282c798c13a51bc13c38
110 changes: 0 additions & 110 deletions Lib/test/test_pathlib.py
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Expand Up @@ -24,116 +24,6 @@
grp = pwd = None


class _BaseFlavourTest(object):

def _check_parse_parts(self, arg, expected):
def f(parts):
path = self.cls(*parts)._raw_path
return self.cls._parse_path(path)
sep = self.flavour.sep
altsep = self.flavour.altsep
actual = f([x.replace('/', sep) for x in arg])
self.assertEqual(actual, expected)
if altsep:
actual = f([x.replace('/', altsep) for x in arg])
self.assertEqual(actual, expected)

def test_parse_parts_common(self):
check = self._check_parse_parts
sep = self.flavour.sep
# Unanchored parts.
check([], ('', '', []))
check(['a'], ('', '', ['a']))
check(['a/'], ('', '', ['a']))
check(['a', 'b'], ('', '', ['a', 'b']))
# Expansion.
check(['a/b'], ('', '', ['a', 'b']))
check(['a/b/'], ('', '', ['a', 'b']))
check(['a', 'b/c', 'd'], ('', '', ['a', 'b', 'c', 'd']))
# Collapsing and stripping excess slashes.
check(['a', 'b//c', 'd'], ('', '', ['a', 'b', 'c', 'd']))
check(['a', 'b/c/', 'd'], ('', '', ['a', 'b', 'c', 'd']))
# Eliminating standalone dots.
check(['.'], ('', '', []))
check(['.', '.', 'b'], ('', '', ['b']))
check(['a', '.', 'b'], ('', '', ['a', 'b']))
check(['a', '.', '.'], ('', '', ['a']))
# The first part is anchored.
check(['/a/b'], ('', sep, ['a', 'b']))
check(['/a', 'b'], ('', sep, ['a', 'b']))
check(['/a/', 'b'], ('', sep, ['a', 'b']))
# Ignoring parts before an anchored part.
check(['a', '/b', 'c'], ('', sep, ['b', 'c']))
check(['a', '/b', '/c'], ('', sep, ['c']))


class PosixFlavourTest(_BaseFlavourTest, unittest.TestCase):
cls = pathlib.PurePosixPath
flavour = pathlib.PurePosixPath._flavour

def test_parse_parts(self):
check = self._check_parse_parts
# Collapsing of excess leading slashes, except for the double-slash
# special case.
check(['//a', 'b'], ('', '//', ['a', 'b']))
check(['///a', 'b'], ('', '/', ['a', 'b']))
check(['////a', 'b'], ('', '/', ['a', 'b']))
# Paths which look like NT paths aren't treated specially.
check(['c:a'], ('', '', ['c:a']))
check(['c:\\a'], ('', '', ['c:\\a']))
check(['\\a'], ('', '', ['\\a']))


class NTFlavourTest(_BaseFlavourTest, unittest.TestCase):
cls = pathlib.PureWindowsPath
flavour = pathlib.PureWindowsPath._flavour

def test_parse_parts(self):
check = self._check_parse_parts
# First part is anchored.
check(['c:'], ('c:', '', []))
check(['c:/'], ('c:', '\\', []))
check(['/'], ('', '\\', []))
check(['c:a'], ('c:', '', ['a']))
check(['c:/a'], ('c:', '\\', ['a']))
check(['/a'], ('', '\\', ['a']))
# UNC paths.
check(['//a/b'], ('\\\\a\\b', '\\', []))
check(['//a/b/'], ('\\\\a\\b', '\\', []))
check(['//a/b/c'], ('\\\\a\\b', '\\', ['c']))
# Second part is anchored, so that the first part is ignored.
check(['a', 'Z:b', 'c'], ('Z:', '', ['b', 'c']))
check(['a', 'Z:/b', 'c'], ('Z:', '\\', ['b', 'c']))
# UNC paths.
check(['a', '//b/c', 'd'], ('\\\\b\\c', '\\', ['d']))
# Collapsing and stripping excess slashes.
check(['a', 'Z://b//c/', 'd/'], ('Z:', '\\', ['b', 'c', 'd']))
# UNC paths.
check(['a', '//b/c//', 'd'], ('\\\\b\\c', '\\', ['d']))
# Extended paths.
check(['//?/c:/'], ('\\\\?\\c:', '\\', []))
check(['//?/c:/a'], ('\\\\?\\c:', '\\', ['a']))
check(['//?/c:/a', '/b'], ('\\\\?\\c:', '\\', ['b']))
# Extended UNC paths (format is "\\?\UNC\server\share").
check(['//?/UNC/b/c'], ('\\\\?\\UNC\\b\\c', '\\', []))
check(['//?/UNC/b/c/d'], ('\\\\?\\UNC\\b\\c', '\\', ['d']))
# Second part has a root but not drive.
check(['a', '/b', 'c'], ('', '\\', ['b', 'c']))
check(['Z:/a', '/b', 'c'], ('Z:', '\\', ['b', 'c']))
check(['//?/Z:/a', '/b', 'c'], ('\\\\?\\Z:', '\\', ['b', 'c']))
# Joining with the same drive => the first path is appended to if
# the second path is relative.
check(['c:/a/b', 'c:x/y'], ('c:', '\\', ['a', 'b', 'x', 'y']))
check(['c:/a/b', 'c:/x/y'], ('c:', '\\', ['x', 'y']))
# Paths to files with NTFS alternate data streams
check(['./c:s'], ('', '', ['c:s']))
check(['cc:s'], ('', '', ['cc:s']))
check(['C:c:s'], ('C:', '', ['c:s']))
check(['C:/c:s'], ('C:', '\\', ['c:s']))
check(['D:a', './c:b'], ('D:', '', ['a', 'c:b']))
check(['D:/a', './c:b'], ('D:', '\\', ['a', 'c:b']))


#
# Tests for the pure classes.
#
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