Yeah, if you're going to use static type checks, which you should, you really want to run the checker in strict mode to catch oversights such as generic contain

Yeah, if you're going to use static type checks, which you should, you really want to run the checker in strict mode to catch oversights such as generic container types without a qualifier. Although I've found that much of the pain of static type checks in Python is really that a lot of popular modules expose incorrect type hints that need to be worked around, which really isn't a pleasant way to spend one's finite time on Earth.