climate_indices | Climate indices for drought monitoring

The problem you've got here is that, by using -mcProfile, the module __main__ is cProfile (the actual entry point of the code), not your script. cProfile tries to fix this by ensuring that when your script runs, it sees __name__ as "__main__", so it knows it's being run as a script, not imported as a module, but sys.modules['__main__'] remains the cProfile module.

Problem is, pickle handles pickling functions by just pickling their qualified name (plus some boilerplate to say it's a function in the first place). And to make sure it will survive the round trip, it always double checks that the qualified name can be looked up in sys.modules. So when you do pickle.dumps(_apply_along_axis_palmers) (explicitly, or implicitly in this case by passing it as the mapper function), where _apply_along_axis_palmers is defined in your main script, it double checks that sys.modules['__main__']._apply_along_axis_palmers exists. But it doesn't, because cProfile._apply_along_axis_palmers doesn't exist.

I don't know of a good solution for this. The best I can come up with is to manually fix up sys.modules to make expose your module and its contents correctly. I haven't tested this completely, so it's possible there will be some quirks, but a solution I've found is to change a module named mymodule.py of the form: