FAQ

This page contains answers to frequently asked questions, common issues, and other useful information for the FPy library.

I’m getting a PicklingError when using FPy.

Python’s pickle module does not play nice with decorators, specifically decorators that produce objects rather than functions. There are a few sources explaining this issue such as this blog on pickling gotchas. The problem is that pickle imposes restrictions on what can be pickled, and deserialzies objects in a particular manner.

The dill package handles more complex objects, including those created by decorators. If you wish to serialize an object, use dill instead of pickle. The multiprocessing module in Python uses pickle by default. Use pathos instead, which uses dill for serialization.