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GH-113528: Deoptimise pathlib._abc.PurePathBase.parts (#113883)

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Implement `parts` using `_stack`, which itself calls `pathmod.split()`
repeatedly. This avoids use of `_tail`, which will be moved to `PurePath`
shortly.
This commit is contained in:
Barney Gale 2024-01-09 22:46:50 +00:00 • committed by GitHub
parent 623b338adf
commit 5c7bd0e398
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2 changed files with 13 additions and 4 deletions
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8
Lib/pathlib/_abc.py
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@ -381,10 +381,10 @@ class PurePathBase:
def parts(self):
"""An object providing sequence-like access to the
components in the filesystem path."""
if self.drive or self.root:
return (self.drive + self.root,) + tuple(self._tail)
else:
return tuple(self._tail)
anchor, parts = self._stack
if anchor:
parts.append(anchor)
return tuple(reversed(parts))
def joinpath(self, *pathsegments):
"""Combine this path with one or several arguments, and return a