testing_list_creation.py

import random
from time import time
random.seed(time())

times = {'listComprehension': 0, 'append': 0, 'preAllocate': 0}

for i in range(0,100):
    endRange = random.randint(100_000, 10_000_000)

    startTime = time()
    listComprehension = [i for i in range(0, endRange)]
    endTime = time()

    times.update({'listComprehension': endTime - startTime})
    
    #Repeat for other methods with same endRange