如何计算2目录路径之间的相对路径？

Question

我有2个目录:

subdir1 = live/events/livepkgr/events/_definst_/
subdir2 = live/streams/livepkgr/streams/_definst_/

结果必须是:

diff_subdir = ../../../../streams/livepkgr/streams/_definst_/

Answer 1

http://docs.python.org/library/os.path.html

os.path.relpath(path [,start])将相对文件路径从当前目录或可选起始点返回到路径.

启动默认为os.curdir.

可用性:Windows,Unix.

2.6版中的新功能.

Answer 2

>>> subdir1 = "live/events/livepkgr/events/_definst_/"
>>> subdir2 = "live/streams/livepkgr/streams/_definst_/"
>>> import os
>>> os.path.relpath(subdir2, subdir1)
'../../../../streams/livepkgr/streams/_definst_'
>>>