mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-10-10 00:43:41 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 18

Issue #3125: Remove copy_reg in multiprocessing and replace it with

Browse source 
ForkingPickler.register() to resolve conflict with ctypes.
This commit is contained in:
Amaury Forgeot d'Arc 2008-08-19 21:30:55 +00:00
parent 3ad89100c1
commit 949d47dc7a
5 changed files with 66 additions and 58 deletions
Download patch file Download diff file Expand all files Collapse all files

33
Lib/multiprocessing/util.py
View file

@ -8,7 +8,6 @@
import itertools
import weakref
import copyreg
import atexit
import threading # we want threading to install it's
# cleanup function before multiprocessing does
@ -302,35 +301,3 @@ class ForkAwareLocal(threading.local):
register_after_fork(self, lambda obj : obj.__dict__.clear())
def __reduce__(self):
return type(self), ()
#
# Try making some callable types picklable
#
def _reduce_method(m):
if m.__self__ is None:
return getattr, (m.__self__.__class__, m.__func__.__name__)
else:
return getattr, (m.__self__, m.__func__.__name__)
copyreg.pickle(type(Finalize.__init__), _reduce_method)
def _reduce_method_descriptor(m):
return getattr, (m.__objclass__, m.__name__)
copyreg.pickle(type(list.append), _reduce_method_descriptor)
copyreg.pickle(type(int.__add__), _reduce_method_descriptor)
def _reduce_builtin_function_or_method(m):
return getattr, (m.__self__, m.__name__)
copyreg.pickle(type(list().append), _reduce_builtin_function_or_method)
copyreg.pickle(type(int().__add__), _reduce_builtin_function_or_method)
try:
from functools import partial
except ImportError:
pass
else:
def _reduce_partial(p):
return _rebuild_partial, (p.func, p.args, p.keywords or {})
def _rebuild_partial(func, args, keywords):
return partial(func, *args, **keywords)
copyreg.pickle(partial, _reduce_partial)