Question

Sometimes I write projects and don’t return to them until months later. Unfortunately for me I forget what was intended to be passed into a function. I would like to be able to hover over an argument and see the type such as integer, string, some class, etc. Is there an IDE out there that will do this for me? Any help is appreciated.

Answer 1

There is no way to infer the type normally, so no IDE will be able to do this. Why not just use docstrings?

def foo(a, b):
    """
    Take your arguments back, I don't want them!

    a -- int
    b -- str
    """

    return a, b

In Python 3 you could also take advantage of function annotations:

def foo(a: int, b: str):
    """Take your arguments back, I don't want them!"""

    return a, b