Querying dynamodb returns "Can't Pick _thread.lock"?

I'm trying to make a general dynamodb query but keep getting a TypeError: can't pickle _thread.lock object.

response = table.query(
            KeyConditionExpression=Key("Key").eq("Whatever")
        )

Any possible pointers? I did some research prior and apparently this error appears when trying to do multithreading, however I am not doing any threading in this script.