Find Out If a Function has been Called

Question

I am programming in Python, and I am wondering if i can test if a function has been called in my code

def example():
    pass
example()
#Pseudocode:
if exam         


        

Answer 1

Memoization functions have been around since the 1960s. In python you can use them as decorators on your example() function.

The standard memoization function looks something like this:

def memoize(func):
    memo = {}
    def wrapper(*args):
        if not args in memo:
            memo[args] = func(*args)
        return memo[args]
    return wrapper 

and you decorate your function like this:

@memoize
def example():
    pass

In python3.2, you can use the functools.lru_cache instead of the memoziation function.

import functools

@functools.lru_cache(maxsize=None)
def example():
     pass