Weak reference

---

• weakref

examples/perf/weakmymem.py

import random
import weakref

def alloc():
    a = {
        'data': str(random.random()) + "a" * 10000000,
    }
    b = {
        'data': str(random.random()) + "b" * 10000000,
    }
    #a['other'] = weakref.WeakKeyDictionary(b)
    z = weakref.ref(b)
    #a['other'] = 
    #weakref.ref(a['other'])
    #b['other'] = a
    #weakref.ref(b['other'])

examples/perf/mem_weakref.py

import sys
from weakmymem import alloc

if len(sys.argv) < 2:
    exit(f"Usage: {sys.argv[0]} N")

count = int(sys.argv[1])

for _ in range(count):
    alloc()
input("End the script")