python - TypeError: 'NoneType' object is not callable in factory function -

#!/usr/bin/python  def maker(n):   def action(x):    return x*n    return action  f=maker(2) print f(3)

i have problem here type error.how solve 2 arguments problem,one fixed.

you need put return action out of action function :

def maker(n):   def action(x):    return x*n   return action  f=maker(2) print f(3)

result:

note in factory function must return inner function result of main function.

Lix