Hi Together,
I'm actually writing a commercial program with a wxPython GUI.
Here a short description of what the GUI does:
The Gui opens a wizard which collects different data from the user's
input and saves it into a dictionary. After finishing the Wizard the
Worker Class is called.
Now that's the point where I need your help. Actually only one working
Object is possible, but I would like to parellelize this using the
multiprocessing module of python (Threading is not senseful here -
tested). Unfortunately the multiprocessing module isn't as easy to
implement as i've hoped. As it's a commercial project I can't offer
you code, but I can give you here an insight how i'm calling the
process.
But this doesn't work here is the traceback:
Traceback (most recent call last):
File "D:\eclipse_workspace_peanuts\qwert\src\Gui\Aui
\mPaneLeft.py", line 89, in start
self.worker.start()
File "C:\Python26\lib\multiprocessing\process.py", line 104, in
start
self._popen = Popen(self)
File "C:\Python26\lib\multiprocessing\forking.py", line 239, in
__init__
dump(process_obj, to_child, HIGHEST_PROTOCOL)
File "C:\Python26\lib\multiprocessing\forking.py", line 162, in
dump
ForkingPickler(file, protocol).dump(obj)
File "C:\Python26\lib\pickle.py", line 224, in dump
self.save(obj)
File "C:\Python26\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python26\lib\pickle.py", line 419, in save_reduce
save(state)
File "C:\Python26\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python26\lib\pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python26\lib\pickle.py", line 681, in _batch_setitems
save(v)
File "C:\Python26\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python26\lib\pickle.py", line 419, in save_reduce
save(state)
File "C:\Python26\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python26\lib\pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python26\lib\pickle.py", line 681, in _batch_setitems
save(v)
File "C:\Python26\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python26\lib\pickle.py", line 419, in save_reduce
save(state)
File "C:\Python26\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python26\lib\pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python26\lib\pickle.py", line 681, in _batch_setitems
save(v)
File "C:\Python26\lib\pickle.py", line 295, in save
self.save_global(obj)
File "C:\Python26\lib\pickle.py", line 748, in save_global
(obj, module, name))
pickle.PicklingError: Can't pickle <class 'ctypes._FuncPtr'>: it's
not found as ctypes._FuncPtr
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Python26\lib\multiprocessing\forking.py", line 342, in
main
self = load(from_parent)
File "C:\Python26\lib\pickle.py", line 1370, in load
return Unpickler(file).load()
File "C:\Python26\lib\pickle.py", line 858, in load
dispatch[key](self)
File "C:\Python26\lib\pickle.py", line 880, in load_eof
raise EOFError
EOFError
My first thought was that this error is throwed because i'm using
datatypes which can't be serialized. But i tried it with pickle.dump()
and it worked, so there has to be anything else.
I already talked to Dav1d and driscollis. Dav1d told me he already had
similar issues with wxpython + multiprocessing.
It would be awesome if you could give me a solution to this 
