How to clone a Python generator object? -

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consider scenario:

#!/usr/bin/env python # -*- coding: utf-8 -*- import os  walk = os.walk('/home')  root, dirs, files in walk:     pathname in dirs+files:         print os.path.join(root, pathname)  root, dirs, files in walk:     pathname in dirs+files:         print os.path.join(root, pathname)

i know example kinda redundant, should consider need use same walk data more once. i've benchmark scenario , use of same walk data mandatory helpful results.

i've tried walk2 = walk clone , use in second iteration, didn't worked. question is... how can copy it? ever possible?

thank in advance.

you can use itertools.tee():

walk, walk2 = itertools.tee(walk)

note might "need significant storage", documentation points out.


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