Pretty size defined in bytes #python #beautify

pp_size.py

#!/usr/bin/env python3

# Based on this (incorrect) response <https://stackoverflow.com/a/43750422>
# Changed to always round up size and always display up to 3 decimals.
# Shall also work with now retired python 2 language.

import math

def pp_size(bytes, units=[' bytes','KB','MB','GB','TB', 'PB', 'EB', 'ZB', 'YB'], base=1000.0):
	""" Returns a human readable string representation of bytes (decimal unit)"""
	if bytes < base or len(units) == 1:
		return str(math.ceil(bytes*base)/base) + units[0]
	else:
		return pp_size(bytes/base, units[1:], base)

def si_size(bytes):
	""" Returns a human readable string representation of bytes (SI unit)"""
	return pp_size(bytes, [' bytes','KiB','MiB','GiB','TiB', 'PiB', 'EiB', 'ZiB', 'YiB'], base=1024.0)