Python garbage collection statistics...

app.py

# -*- coding: utf-8 -*-

import gc

s = {}
for i in gc.get_objects():
    _ = str(type(i))
    if _ in s:
        s[_] += 1
    else:
        s[_] = 1

def filter(_):
    k, v = _
    if v > 100:
        return (k, v)

for item in map(filter, s.items()):
    if item:
        print(item[0], item[1])