>>> myFunc(b="A","B")
  File "<stdin>", line 1
SyntaxError: non-keyword arg after keyword arg
>>> myFunc("A",a="B")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: myFunc() got multiple values for keyword argument 'a'
>>> myFunc("A",b="B")
A
B