I was under the impression that typing module in Python is mostly for increasing code readability and for code documentation purposes. After playing around with it and reading about the module, I've managed to confuse myself with it. Code below works even though those two variables are not initialized (as you would normally initialize them e.g. a = "test"). I've only put a type hint on it and everything seems ok. That is, I did not get a NameError as I would get if I just had a in my code NameError: name 'a' is not defined Is declaring variables in this manner (with type hints) an OK practice? Why does this work? from typing import Any test_var: int a: Any print('hi') I expected test_var: int to return an error saying that test_var is not initiated and that I would have to do something like test_var: int = 0 (or any value at all). Does this get set to a default value because I added type hint to it? Continue reading...
