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- import os
- from math import log
-
- def sizeof_fmt(num):
- """Human friendly file size"""
- unit_list = zip(['bytes', 'kiB', 'MiB', 'GiB', 'TiB'], [0, 0, 1, 2, 2])
- if num > 1:
- exponent = min(int(log(num, 1024)), len(unit_list) - 1)
- quotient = float(num) / 1024**exponent
- unit, num_decimals = unit_list[exponent]
- format_string = '{:.%sf} {}' % (num_decimals)
- return format_string.format(quotient, unit)
- if num == 0: # pragma: no cover
- return '0 bytes'
- if num == 1: # pragma: no cover
- return '1 byte'
-
- def du_bytes(path):
- """Like du -sb, returns total size of path in bytes."""
- size = os.path.getsize(path)
- if os.path.isdir(path):
- for thisfile in os.listdir(path):
- filepath = os.path.join(path, thisfile)
- size += du_bytes(filepath)
- return size
-
- def du(path):
- """Like du -sh, returns total size of path as a human-readable string."""
- return sizeof_fmt(du_bytes(path))
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