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Re: Finding the source of an exception in a python multiprocessing program

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On 2013-04-24, William Ray Wing <wrw@mac.com> wrote:
> On Apr 24, 2013, at 4:31 PM, Neil Cerutti <neilc@norwich.edu> wrote:
>
>> On 2013-04-24, William Ray Wing <wrw@mac.com> wrote:
>>> When I look at the pool module, the error is occurring in
>>> get(self, timeout=None) on the line after the final else:
>>> 
>>>    def get(self, timeout=None):
>>>        self.wait(timeout)
>>>        if not self._ready:
>>>            raise TimeoutError
>>>        if self._success:
>>>            return self._value
>>>        else:
>>>            raise self._value
>> 
>> The code that's failing is in self.wait. Somewhere in there you
>> must be masking an exception and storing it in self._value
>> instead of letting it propogate and crash your program. This is
>> hiding the actual context.
>
> I'm sorry, I'm not following you.  The "get" routine (and thus
> self.wait) is part of the "pool" module in the Python
> multiprocessing library. None of my code has a class or
> function named "get".

Oops! I failed to notice it was part of the pool module and not
your own code. 

-- 
Neil Cerutti

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Thread

Finding the source of an exception in a python multiprocessing program William Ray Wing <wrw@mac.com> - 2013-04-24 15:25 -0400
  Re: Finding the source of an exception in a python multiprocessing program Neil Cerutti <neilc@norwich.edu> - 2013-04-24 20:31 +0000
    Re: Finding the source of an exception in a python multiprocessing program William Ray Wing <wrw@mac.com> - 2013-04-24 17:09 -0400
      Re: Finding the source of an exception in a python multiprocessing program Neil Cerutti <neilc@norwich.edu> - 2013-04-25 12:37 +0000
    Re: Finding the source of an exception in a python multiprocessing program Dave Angel <davea@davea.name> - 2013-04-24 19:26 -0400
    Re: Finding the source of an exception in a python multiprocessing program Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-04-25 01:00 +0100
    Re: Finding the source of an exception in a python multiprocessing program Dave Angel <davea@davea.name> - 2013-04-24 20:11 -0400

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