TIL: Python recursion limits

Today I learned that you can get (sys.getrecursionlimit()) and set (sys.setrecursionlimit(limit)) the Python interpreter’s maximum stack depth. I can see that on my system, the maximum stack depth or recursion limit is 3000. Exceeding the limit results in a RecursionError.

This came up in a Prefect flow using a LocalDaskExecutor that attempted to serialize an object with cloudpickle that failed with RecursionError.