Forced naming of parameters in Python

Question

In Python you may have a function definition:

def info(object, spacing=10, collapse=1)

which could be called in any of the following ways:<

Answer 1

You could declare your functions as receiving **args only. That would mandate keyword arguments but you'd have some extra work to make sure only valid names are passed in.

def foo(**args):
   print args

foo(1,2) # Raises TypeError: foo() takes exactly 0 arguments (2 given)
foo(hello = 1, goodbye = 2) # Works fine.