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In the implementation of the PEP 446, issue #18571, I replaced multiprocessing.util.pipe() with os.pipe() in the multiprocessing module.
Can we remove the multiprocessing.util.pipe() function? It is not public nor documented.
Charles-François Natali added the comment (in issue #18571):
 14.1 --- a/Lib/multiprocessing/util.py
 14.2 +++ b/Lib/multiprocessing/util.py
 14.13 #
 14.14 # Return pipe with CLOEXEC set on fds
 14.15 #
 14.16 +# Deprecated: os.pipe() creates non-inheritable file descriptors
 14.17 +# since Python 3.4
 14.18 +#
 14.19
 14.20 def pipe():
 14.21 - import _posixsubprocess
 14.22 - return _posixsubprocess.cloexec_pipe()
 14.23 + return os.pipe()
I guess you could remove util.pipe() altogether: it wasn't part of the public API.