Timing test of Python print formatting methods

formatting_perf_test.py

import timeit
import sys

print("Python", sys.version)

def test1(p1:int, p2:float, p3:str):
    return 'A typical: {:d} format {:.2f} example {:s}'.format(p1, p2, p3)

def test2(p1:int, p2:float, p3:str):
    return 'A typical: %d format %.2f example %s' % (p1, p2, p3)

def test3(p1:int, p2:float, p3:str):
    return f'A typical: {p1:d} format {p2:.2f} example {p3:s}'

def test4(p1:int, p2:float, p3:str):
    return "A typical: " + str(p1) + " format " + str(round(p2, 2)) + " example " + p3

p1 = 1324
p2 = 3.4567
p3 = "including a string"

ret = test1(p1, p2, p3)
assert test2(p1, p2, p3) == ret
assert test3(p1, p2, p3) == ret
assert test4(p1, p2, p3) == ret
print("Return value: " + ret)

print('format:   ', timeit.timeit("test1(p1, p2, p3)", globals=globals()))
print('%:        ', timeit.timeit("test2(p1, p2, p3)", globals=globals()))
print('f-string: ', timeit.timeit("test3(p1, p2, p3)", globals=globals()))
print('concat:   ', timeit.timeit("test4(p1, p2, p3)", globals=globals()))