Standalone game experience with two players playing by sharing the same shell and peripheral I/O devices

[Yo1k]

• Create a class that defines a type for all possible player inputs.
• Learn about generics and type hints in Python.
• Read https://www.python.org/dev/peps/pep-0544/, https://docs.python.org/3/library/typing.html#typing.Protocol.
• a import b, b import a. result: a b a
• a import c, a import b, b import c. result: c b a
• Read about exceptions and assert in Python.
• How to make documentation of attribute/private attributes?
• Read about arrays in Python.
• How to make constants in Python?