Eryk Sun <eryk...@gmail.com> added the comment:
> There's no reason a non-existing drive should fail differently than
> a non-existing parent directory.
The drive exists (or should) if we're getting ERROR_NOT_READY (21). It's likely
a removable media device, such as an optical disc or card reader, and there's
no media in the device.
If a logical drive isn't defined at all, we should get ERROR_PATH_NOT_FOUND
(from the NT status value STATUS_OBJECT_PATH_NOT_FOUND). This gets mapped to
the errno value ENOENT, which is already handled. For example:
>>> os.stat('Q:/')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
FileNotFoundError: [WinError 3] The system cannot find the path specified:
'Q:/'
>>> pathlib.Path('Q:/whatever/blah.txt').exists()
False
Similarly if a UNC 'drive' doesn't exist, we should get ERROR_BAD_NET_NAME
(from NT STATUS_BAD_NETWORK_NAME), which is also mapped to ENOENT:
>>> os.stat('//some/where')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
FileNotFoundError: [WinError 67] The network name cannot be found:
'//some/where'
>>> pathlib.Path('//some/where/whatever/blah.txt').exists()
False
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue35692>
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