aiohttp memleaking test

gistfile1.txt

import itertools
from aiohttp import CIMultiDict

import tracemalloc


def leaking(headers):
    headers = ''.join(itertools.chain(
        ('status line',),
        *((k, ': ', v, '\r\n') for k, v in headers.items())))
    headers = headers.encode('utf-8') + b'\r\n'
    return headers


def nonleaking(headers):
    headers = 'status line' + ''.join([
        k + ': ' + v + '\r\n' for k, v in headers.items()])
    headers = headers.encode('utf-8') + b'\r\n'
    return headers


tracemalloc.start()
s0 = tracemalloc.take_snapshot()

for i in range(100):
    for j in range(1000):
        headers = CIMultiDict({'a': '1', 'b': '2'})
        #leaking(headers)
        nonleaking(headers)
    s1 = tracemalloc.take_snapshot()
    diff = s1.compare_to(s0, 'lineno')
    print("[ Top 10 differences ]")
    for stat in diff[:10]:
        p = str(stat)
        if '/usr/lib' not in p:
            print(p)
    s0 = s1