is there a way to track the number of times a function is called?

Question

So i\'m trying to make a function that keeps track how many times a method is called. for example:

a = [1,2,3,4]
a.pop()

i want to know how

Answer 1

One approach is to create a proxy of the instance for which you want to count attribute access:

from collections import Counter

class CountingProxy():
    def __init__(self, instance):
        self._instance = instance
        self.count = Counter()

    def __getattr__(self, key):
        if hasattr(self._instance, key):
            self.count[key] += 1
        return getattr(self._instance, key)


>>> l = [1,2,3,4,5]
>>> cl = CountingProxy(l)
>>> cl.pop()
5
>>> cl.append(10)
>>> cl.index(3)
2
>>> cl.reverse()
>>> cl.reverse()
>>> cl.count
Counter({'reverse': 2, 'pop': 1, 'append': 1, 'index': 1})