Learn how Mypy's type checking works with functions and generators ... That site has documentation, tutorials and even information for people using Python 2 who want to introduce mypy via comments ...

Improve your Python testing even more ... it showed that the even-number path wasn't covered. Let's add a test to do this: def test_even_numbers(): with pytest.raises(NoEvenNumbersHereException): only ...

Is there a reason why functions in most(?) programming languages are designed to support any number of input parameters but only one return ... Some languages, like Python, support multiple ...