Can mypy check docstrings?

问题

I have numpydoc-style docstrings:

def foobar(filename, copy, dtype, iterable, shape, files):
    """
    foobar is 42.

    Parameters
    ----------
    filename : str
    copy : bool
    dtype : data-type
    iterable : iterable object
    shape : int or tuple of int
    files : list of str

    Returns
    -------
    foobarfoo : int
    """
    pass

Is it possible to check if the docstring-types can possibly be correct?

(side question: Can numpy return/print the function signatures it discovered?)

For example, I would expect the following to fail:

Return Types

def foobar():
    """
    Returns
    -------
    blub : int
    """
    return "foo"

or

def foobar(a, b):
    """
    Parameters
    ----------
    a : number
    b : number

    Returns
    -------
    blub : int
    """
    if a > b:
        return "foo"
    return 42

Parameter types

def foobar(a, b):
    """
    Parameters
    ----------
    a : str
    b : int

    Returns
    -------
    blub : int
    """
    return a * b

回答1:

No, mypy understands the official Python's typing notation only. See the mypy docs. And this fine, we don't need many alternative ways to type annotate, as

There should be one-- and preferably only one --obvious way to do it.

来源：https://stackoverflow.com/questions/53221369/can-mypy-check-docstrings