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"""This module contains a code example related to

Think Python, 2nd Edition

by Allen Downey

http://thinkpython2.com

Copyright 2015 Allen Downey

License: http://creativecommons.org/licenses/by/4.0/

"""

from __future__ import print_function, division

from inlist import in_bisect, make_word_list

def reverse_pair(word_list, word):

"""Checks whether a reversed word appears in word_list.

word_list: list of strings

word: string

"""

rev_word = word[::-1]

return in_bisect(word_list, rev_word)

if __name__ == '__main__':

word_list = make_word_list()

for word in word_list:

if reverse_pair(word_list, word):

print(word, word[::-1])