The problems with python types are: A) The type system is fairly bad, as type systems go (forgivable) B) the type checkers are, for large codebases, excruciati

The problems with python types are: A) The type system is fairly bad, as type systems go (forgivable) B) the type checkers are, for large codebases, excruciatingly slow, to the point that the tests are faster!! The second is not forgivable.