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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 rotate import rotate_word

def make_word_dict():

"""Read the words in words.txt and return a dictionary

that contains the words as keys"""

d = dict()

fin = open('words.txt')

for line in fin:

word = line.strip().lower()

d[word] = None

return d

def rotate_pairs(word, word_dict):

"""Prints all words that can be generated by rotating word.

word: string

word_dict: dictionary with words as keys

"""

for i in range(1, 14):

rotated = rotate_word(word, i)

if rotated in word_dict:

print(word, i, rotated)

if __name__ == '__main__':

word_dict = make_word_dict()

for word in word_dict:

rotate_pairs(word, word_dict)