Eryk Sun <eryk...@gmail.com> added the comment:
For whatever the reason and Windows version, it's still the case that
_get_handles() should work around any bad standard handles in the current
process. In bpo-25492, I suggested checking os.get_handle_inheritable(). That's
too permissive. It should require a valid file handle, checked via
_winapi.GetFileType(). For example:
if stdin is None:
p2cread = _winapi.GetStdHandle(_winapi.STD_INPUT_HANDLE)
if p2cread is not None:
try:
_winapi.GetFileType(p2cread)
except OSError:
p2cread = None
----------
components: +Library (Lib)
versions: +Python 3.10, Python 3.9 -Python 2.7, Python 3.7
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<https://bugs.python.org/issue3905>
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