list max deep dirs

#!/usr/bin/python
# -*- coding: utf-8 -*-

import os

s = set()
for path, dirs, files in os.walk('/tmp/1'):
    if path:
        s.add(path)


def path_max(p):
    return len(p.split(os.sep))


maxlen = len(max(s, key=path_max).split(os.sep))
for i in s:
    if len(i.split(os.sep)) == maxlen:
        print i

# $ tree /tmp/1
# /tmp/1
# └── 2
#    └── 3
#        └── 4
#            ├── 5
#            ├── a
#            ├── b
#            └── c