How to read a file in reverse order?

Question

How to read a file in reverse order using python? I want to read a file from last line to first line.

Answer 1

I don't think this has been mentioned before, but using deque from collections and reverse works for me:

from collections import deque

fs = open("test.txt","rU")
fr = deque(fs)
fr.reverse()  # reverse in-place, returns None

for li in fr:
   print li

fs.close()