Álvaro Justen <alvarojus...@gmail.com> added the comment:
Based on changes at https://github.com/python/cpython/pull/15989 I've
monkey-patched `multiprocessing.resource_tracker` so my current applications
(running on Python 3.9.2) won't be affected. The code may be useful to others
while the PR is not merged and we don't have a new release - you just need to
call the `remove_shm_from_resource_tracker` function inside each Process target
function.
----- >8 -----
from multiprocessing import resource_tracker
def remove_shm_from_resource_tracker():
"""Monkey-patch multiprocessing.resource_tracker so SharedMemory won't be
tracked
More details at: https://bugs.python.org/issue38119
"""
def fix_register(name, rtype):
if rtype == "shared_memory":
return
return resource_tracker._resource_tracker.register(self, name, rtype)
resource_tracker.register = fix_register
def fix_unregister(name, rtype):
if rtype == "shared_memory":
return
return resource_tracker._resource_tracker.unregister(self, name, rtype)
resource_tracker.unregister = fix_unregister
if "shared_memory" in resource_tracker._CLEANUP_FUNCS:
del resource_tracker._CLEANUP_FUNCS["shared_memory"]
----- 8< -----
There's a working example in attached file `mprt_monkeypatch.py` (if you
comment the function calls on lines 28 and 37 the warnings will be shown).
----------
nosy: +turicas
Added file: https://bugs.python.org/file49859/mprt_monkeypatch.py
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<https://bugs.python.org/issue38119>
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