Testing tee efficiency against list

tee_test.py

from itertools import tee
from time import time

def t1(count):
    l = []
    for i in range(count):
        l.append(i)

def t2(count):
    a, b = tee(range(count))
    for _ in a:
        pass

count = 1000
for i in range(5):
    now = time()
    t1(count)
    time1 = time() - now

    now = time()
    t2(count)
    time2 = time() - now

    print(count, time1, time2)
    count *= 10



# 1000 6.842613220214844e-05 3.4809112548828125e-05
# 10000 0.0011477470397949219 0.000476837158203125
# 100000 0.006156206130981445 0.004708051681518555
# 1000000 0.06155204772949219 0.05104660987854004
# 10000000 0.5977113246917725 0.6441948413848877