gistfile1.txt

In [31]: def create_counter():
   ....:     def _counter():
   ....:         global count
   ....:         count += 1
   ....:         return count
   ....:     return _counter
   ....: 

In [32]: f = create_counter()

In [33]: f()
Out[33]: 1

In [34]: g = create_counter()

In [35]: g()
Out[35]: 2