STINNER Victor added the comment:
> Would it be acceptable to implement a pipe2 shim for those platforms?
If I understand correctly, you propose to add an option inheritable parameter
to os.pipe():
def os.pipe(inheritable=False):
...
The PEP 446 was written to fix race conditions. os.pipe(inheritable=True) would
create a race condition if another thread calls fork().
What is your use case? Please elaborate.
The subprocess module makes "pass_fds" file descriptors inheritables in a safe
way.
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