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GH-83863: Drop support for using pathlib.Path objects as context managers (GH-104807)

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In Python 3.8 and prior, `pathlib.Path.__exit__()` marked a path as closed;
some subsequent attempts to perform I/O would raise an IOError. This
functionality was never documented, and had the effect of making `Path`
objects mutable, contrary to PEP 428. In Python 3.9 we made `__exit__()` a
no-op, and in 3.11 `__enter__()` began raising deprecation warnings. Here
we remove both methods.
This commit is contained in:
Barney Gale 2023-05-23 23:31:59 +01:00 • committed by GitHub
parent e0b3078705
commit 6b1510cf11
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4 changed files with 7 additions and 39 deletions
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19
Lib/pathlib.py
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@ -1080,25 +1080,6 @@ class Path(PurePath):
cls = WindowsPath if os.name == 'nt' else PosixPath
return object.__new__(cls)
def __enter__(self):
# In previous versions of pathlib, __exit__() marked this path as
# closed; subsequent attempts to perform I/O would raise an IOError.
# This functionality was never documented, and had the effect of
# making Path objects mutable, contrary to PEP 428.
# In Python 3.9 __exit__() was made a no-op.
# In Python 3.11 __enter__() began emitting DeprecationWarning.
# In Python 3.13 __enter__() and __exit__() should be removed.
warnings.warn("pathlib.Path.__enter__() is deprecated and scheduled "
"for removal in Python 3.13; Path objects as a context "
"manager is a no-op",
DeprecationWarning, stacklevel=2)
return self
def __exit__(self, t, v, tb):
pass
# Public API
@classmethod
def cwd(cls):
"""Return a new path pointing to the current working directory."""