Steve Dower added the comment:
Actually, I'd be inclined to never use the prefix within pathlib and then add
it on if necessary when converting to a string. That would also solve a problem
like:
>>> p = Path("C:\\") / ('a'*150) / ('a'*150)
>>> p.stat()
FileNotFoundError: [WinError 3] The system cannot find the path specified: ...
>>> p2 = Path("\\\\?\\" + str(p))
>>> p2.stat()
os.stat_result(...)
The hardest part about this is knowing with certainty whether it's needed. We
can certainly detect most cases automatically.
Maybe we also need an extra method or a format character to force a str() with
prefix? Or maybe having an obvious enough function that people can monkey-patch
if necessary - the "\\?\" prefix is an edge case for most people already, and
checking the total length would bring that to >99% IME.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22299>
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