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Unrelated: What is this *pickle* term origin? Python errors sometimes generate some "Could not pickle" errors and not sure what it tries to convey ...

• tyingq 6y ago
  Pickling a cucumber stores and preserves it for later use, so the term is used for serialization. Still an odd analogy though, since you can't unpickle a pickle. I've heard freeze/thaw which is at least a little better.
  • jdub 6y ago
    It's Python. So it's Monty Python.
• bobbylarrybobby 6y ago
  Pickle is the Python module that (de)serializes Python objects to some sort of binary format. Failure to pickle means the object couldn’t be serialized — the most common instance is probably trying to pass a lambda to a multiprocessing worker, because they don’t have names (you should use a def or functions.partial instead).