import functools from dask.compatibility import getargspec def test_getargspec(): def func(x, y): pass assert getargspec(func).args == ['x', 'y'] func2 = functools.partial(func, 2) # this is a bit of a lie, but maybe close enough assert getargspec(func2).args == ['x', 'y'] def wrapper(*args, **kwargs): pass wrapper.__wrapped__ = func assert getargspec(wrapper).args == ['x', 'y'] class MyType(object): def __init__(self, x, y): pass assert getargspec(MyType).args == ['self', 'x', 'y']