New submission from Stefan Krah <stefan-use...@bytereef.org>:
On Windows/amd64, I get loads of pickling errors in test_multiprocessing.
Type 1 error:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\stefan\svn\trunk\lib\multiprocessing\forking.py", line 347, in
main
self = load(from_parent)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 1378, in load
return Unpickler(file).load()
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 858, in load
dispatch[key](self)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 880, in load_eof
raise EOFError
EOFError
Type 2 error:
======================================================================
ERROR: test_fork (__main__.WithManagerTestQueue)
----------------------------------------------------------------------
Traceback (most recent call last):
File "..\..\Lib\test\test_multiprocessing.py", line 485, in test_fork
p.start()
File "C:\Users\stefan\svn\trunk\lib\multiprocessing\process.py", line 104, in
start
self._popen = Popen(self)
File "C:\Users\stefan\svn\trunk\lib\multiprocessing\forking.py", line 244, in
__init__
dump(process_obj, to_child, HIGHEST_PROTOCOL)
File "C:\Users\stefan\svn\trunk\lib\multiprocessing\forking.py", line 167, in
dump
ForkingPickler(file, protocol).dump(obj)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 224, in dump
self.save(obj)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 419, in save_reduce
save(state)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 681, in _batch_setitems
save(v)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Users\stefan\svn\trunk\lib\multiprocessing\forking.py", line 40, in
dispatcher
self.save_reduce(obj=obj, *rv)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 401, in save_reduce
save(args)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 548, in save_tuple
save(element)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 419, in save_reduce
save(state)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 681, in _batch_setitems
save(v)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 419, in save_reduce
save(state)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 681, in _batch_setitems
save(v)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 396, in save_reduce
save(cls)
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Users\stefan\svn\trunk\lib\pickle.py", line 748, in save_global
(obj, module, name))
PicklingError: Can't pickle <type 'cStringIO.StringO'>: it's not found as
cStringIO.StringO
----------
components: Library (Lib)
messages: 102539
nosy: skrah
priority: high
severity: normal
stage: needs patch
status: open
title: test_multiprocessing: pickling failures
type: behavior
versions: Python 2.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue8333>
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