[Pythonmac-SIG] py2app & multiprocessing

[Gabriel Rossetti]

Thank you Daniel for your comment, I am having a rather hard time 
porting my app to Mac. It works great on linux, it also works on 
windows, but on Mac it goes crazy, it even locks up the OS (all I can do 
is move the mouse pinwheel of death around but no clicks, no keyboard, 
no SSH, nothing) and I have to had reboot it. It uses a combination of 
Twisted and wxPython and is rather large, so I don't know where this 
comes from, it could be wx, twisted or the two together. Anyways, I was 
thinking of using multiprocessing instead of Popen because Popen could 
not find my files when using py2app, even though they were in the same 
directory as the main exec. I even tried putting the execs in the 
resource dir but no luck, so I thought maybe Popen would work better 
since it does not use files.

Gabriel

Daniel Ashbrook wrote:
> I don't know the answer to this question, but I wanted to warn you: be 
> careful using multiprocessing with PyObjc. I never was able to get it 
> into a easy test case, but sometimes one or more of my multiprocessing 
> processes would never return when used in conjunction with PyObjc, and 
> the program would endlessly loop waiting for results. I eventually had 
> to move all of the multiprocessing to an external process launched 
> with Popen.
>
> dan
>
>
> On Aug 12, 2009, at 10:41a, Gabriel Rossetti wrote:
>
>> Hello everyone, I am trying to use py2app with multiprocessing but it 
>> doesn't work correctly, I get this :
>>
>> ImportError: 
>> '/System/Library/Frameworks/Python.framework/Versions/2.5/lib-dynload/multiprocessing/_multiprocessing.so' 
>> not found
>>
>> I don't understand why it is looking for that there since 
>> multiprocessing is not installed there. I told it to include the 
>> multiprocessing package and it doesn't complain when I run python 
>> setup.py py2app.
>>
>> Does anyone have an idea?
>>
>> Thanks,
>> Gabriel
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