Generate suffixes for large numbers in Python (e.g. 1,000,000 = "1M", 10,000 = "10K" etc.)

human_format.py

from random import randint
from math import log10, floor

def human_format(num, ends=["", "K", "M", "B", "T"]):
    # divides by 3 to separate into thousands (...000)
	return ends[int(floor(log10(num))/3)]

if __name__ == '__main__':
    for i in range(10):
        x = randint(1,10**i)
        print(x, human_format(x))