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gh-89760: Fix os.path.realpath() for volume GUID paths on Windows - #155396
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serhiy-storchaka wants to merge 1 commit into
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gh-89760: Fix os.path.realpath() for volume GUID paths on Windows#155396serhiy-storchaka wants to merge 1 commit into
serhiy-storchaka wants to merge 1 commit into
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The \\?\ prefix was stripped from the resolved path if it could not be resolved without the prefix and failed with the same error as the original path. This produced an invalid, seemingly relative path for a junction which points to a volume without a drive letter. The prefix is now only stripped for drive-letter and UNC paths.
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If a junction points to a directory on a volume which has no drive letter,
os.path.realpath()returned a path likeVolume{<uuid>}\dir, without the\\?\prefix, which is invalid and even looks relative.The prefix was stripped because the check that the non-prefixed path resolves to the same path failed with the same error as the original path.
The prefix is now only stripped for drive-letter and UNC paths, as suggested by @eryksun.