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pathlib ABCs: Require one or more initialiser arguments (#113885)

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Refuse to guess what a user means when they initialise a pathlib ABC
without any positional arguments. In mainline pathlib it's normalised to
`.`, but in the ABCs this guess isn't appropriate; for example, the path
type may not represent the current directory as `.`, or may have no concept
of a "current directory" at all.
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Barney Gale 2024-01-10 01:12:58 +00:00 • committed by GitHub
parent beb80d11ec
commit 5d8a3e74b5
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2 changed files with 26 additions and 32 deletions
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10
Lib/pathlib/_abc.py
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@ -167,13 +167,7 @@ class PurePathBase:
def __str__(self):
"""Return the string representation of the path, suitable for
passing to system calls."""
paths = self._raw_paths
if len(paths) == 1:
return paths[0]
elif paths:
return self.pathmod.join(*paths)
else:
return ''
return self.pathmod.join(*self._raw_paths)
def as_posix(self):
"""Return the string representation of the path with forward (/)
@ -838,7 +832,7 @@ class PathBase(PurePathBase):
# enable users to replace the implementation of 'absolute()' in a
# subclass and benefit from the new behaviour here. This works because
# os.path.abspath('.') == os.getcwd().
return cls().absolute()
return cls('').absolute()
def expanduser(self):
""" Return a new path with expanded ~ and ~user constructs