[issue26333] Multiprocessing imap hangs when generator input errors

Terry J. Reedy added the comment: If you add the "if __name__ == '__main__':" guard after defining the target function, as specified in the multiprocessing doc, you will get a traceback much as you expect: Traceback (most recent call last): File "F:\Python\mypy\tem.py", line 12, in for

[issue26333] Multiprocessing imap hangs when generator input errors

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[issue26333] Multiprocessing imap hangs when generator input errors

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[issue26333] Multiprocessing imap hangs when generator input errors

New submission from Aaron Halfaker: multiprocessing.imap will hang and not raise an error if an error occurs in the generator that is being mapped over. I'd expect the error to be raised and/or the process to fail. For example, run the following code in python 2.7 or 3.4: from multipro