func2.py

x, y, z=20):
    return x + y + z


my_list = [22, 17, 19]
my_dict = {
    'x': 13,
    'y': 22,
    'z': 1,
}

print
return_val = my_func(10, 20, 30)
print "Calling with three positional args: {}".format(return_val)

return_val = my_func(x=10, y=20)
print "Calling with two named args: {}".format(return_val)

return_val = my_func(10, z=13, y=20)
print "Calling with one positional and two named args: {}".format(return_val)

return_val = my_func(x='x', y='y', z='z')
print "Calling with three strings: {}".format(return_val)

return_val = my_func(x=['x'], y=['y'], z=['z'])
print "Calling with three lists: {}".format(return_val)

return_val = my_func(*my_list)
print "Calling with *args: {}".format(return_val)

return_val = my_func(**my_dict)
print "Calling with **kwargs: {}".format(return_val)
print