Eryk Sun <[email protected]> added the comment:
In Windows 7, FindFirstFileA uses a per-thread static buffer to decode the
input bytes path to Unicode. This buffer limits the length to 259 characters
(MAX_PATH - 1), even if a "\\?\" device path is used. Windows 8+ uses a dynamic
buffer, but I don't see the point of switching to a dynamic buffer on our side
given Windows 7 is still so widely used and the documentation still requires
Unicode for long "\\?\" paths.
Ideally, I think 2.7 should raise the same exception as 3.5 does in this case
[1]. For example:
>>> os.listdir(long_bytes_path)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: listdir: path too long for Windows
[1]: https://github.com/python/cpython/blob/v3.5.7/Modules/posixmodule.c#L928
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nosy: +eryksun
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