Basic timing in py

#exercise comparing del on list vs dict in python 3

import time


def test_list(in_list):
    start = time.time()
    for i in range(len(in_list)):
        del in_list[0]
    end = time.time()
    return end-start


def test_dict(in_dict):
    start = time.time()
    for i in range(len(in_dict)):
        del in_dict[i]
    end = time.time()
    return end-start


x = list(range(125000))
y = {j: j for j in range(10000000)}
test_size1 = len(x)
test_size2 = len(y)

print("It took {} seconds to delete {} items from a list".format(test_list(x),test_size1))
print("It took {} seconds to delete {} items from a dict".format(test_dict(y),test_size2))