New submission from ProgVal:
Hello,
The following code:
import sys
import multiprocessing
sys.stdout.close()
def foo():
pass
p = multiprocessing.Process(target=foo)
p.start()
Crashes with:
Traceback (most recent call last):
File "foo.py", line 10, in <module>
p.start()
File "/usr/lib/python3.5/multiprocessing/process.py", line 105, in start
self._popen = self._Popen(self)
File "/usr/lib/python3.5/multiprocessing/context.py", line 212, in _Popen
return _default_context.get_context().Process._Popen(process_obj)
File "/usr/lib/python3.5/multiprocessing/context.py", line 267, in _Popen
return Popen(process_obj)
File "/usr/lib/python3.5/multiprocessing/popen_fork.py", line 17, in __init__
sys.stdout.flush()
ValueError: I/O operation on closed file.
This bug has been reported to me on a daemonized program (written prior to PEP
3143).
----------
components: Library (Lib)
messages: 277807
nosy: Valentin.Lorentz
priority: normal
severity: normal
status: open
title: multiprocessing.Process depends on sys.stdout being open
versions: Python 3.5
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Python tracker <[email protected]>
<http://bugs.python.org/issue28326>
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