Multiprocessing fails on Windows

[MatthewThe]

Running on a windows machine with Anaconda+Python3 results in the following error when trying to calculate protein posteriors:

AttributeError: Can't pickle local object 'MyPool.__init__.<locals>.<lambda>'

This is a well known problem with the multiprocessing module (e.g. here). The trick is apparently to define the function as a "top-level" function, which might be a bit cumbersome in the current state of the code.

[MatthewThe]

Funnily enough it was actually the lambda function defined here that caused the problem:

triqler/triqler/multiprocessing_pool.py

Line 10 in 08aff09

self.pool = Pool(processes, lambda : init_worker(warningFilter))

Simply creating a named function for this lambda function seems to solve the problem.