Toying around with metaprogramming in Python.

compose.py

def compose(*funcs):
     """Composes (or chains) two or more functions into a new function.
    
        E.g. with "f = compose(len, str, int)", f('123')" is the same as
        len(str(int('123')))."""
     if len(funcs) < 2:
         raise Exception("too few arguments given")
     elif len(funcs) == 2:
         (a, b) = funcs
         def call(*args, **kwargs):
             return a(b(*args, **kwargs))
         return call
     else:
         head = funcs[:2]
         tail = funcs[2:]
         f = compose(*head)
         return compose(f, *tail)