console session demonstrating function composition

function_composition.py

>>> def compose(g, h):
...     def anon(x):
...         return g(h(x))
...     return anon
... 
>>> f3 = compose(f1, f2)
>>> f3("Shillalegh")
<__main__.Func object at 0x100569dd0>('Shillalegh') called
f1('Shillalegh') called
'Shillalegh'

f1 and f2 were previously defined