Static analysis incorrectly detects the following as erroneous (due to erroneous code after return):

In MyPyTutor for CSSE1001: Functionality Programming the follow code is entered:

def add_functions(f,g):
    """ Returns a function that accepts a single argument and returns f(x) + g(x)
    """
    return lambda x: f(x) + g(x)
    add = lambda f,g:f+g
    ​return add

the following error occurs:

Your lambda should only take in a single arg