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bpo-33721: Make some os.path functions and pathlib.Path methods be tolerant to invalid paths. (#7695)

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Such functions as os.path.exists(), os.path.lexists(), os.path.isdir(),
os.path.isfile(), os.path.islink(), and os.path.ismount() now return False
instead of raising ValueError or its subclasses UnicodeEncodeError
and UnicodeDecodeError for paths that contain characters or bytes
unrepresentative at the OS level.
This commit is contained in:
Serhiy Storchaka 2018-09-18 11:28:51 +03:00 • committed by GitHub
parent 7bdf28265a
commit 0185f34ddc
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15 changed files with 181 additions and 54 deletions
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8
Lib/posixpath.py
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@ -169,7 +169,7 @@ def islink(path):
"""Test whether a path is a symbolic link"""
try:
st = os.lstat(path)
except (OSError, AttributeError):
except (OSError, ValueError, AttributeError):
return False
return stat.S_ISLNK(st.st_mode)
@ -179,7 +179,7 @@ def lexists(path):
"""Test whether a path exists. Returns True for broken symbolic links"""
try:
os.lstat(path)
except OSError:
except (OSError, ValueError):
return False
return True
@ -191,7 +191,7 @@ def ismount(path):
"""Test whether a path is a mount point"""
try:
s1 = os.lstat(path)
except OSError:
except (OSError, ValueError):
# It doesn't exist -- so not a mount point. :-)
return False
else:
@ -206,7 +206,7 @@ def ismount(path):
parent = realpath(parent)
try:
s2 = os.lstat(parent)
except OSError:
except (OSError, ValueError):
return False
dev1 = s1.st_dev