"""Make wordPatterns.py file
Creates :py:mod:`CrackingCodes.Ch17.wordPatterns` based on the words in our dictionary text file,
dictionary.txt. A word pattern assigns a number to each letter in a word, then generates a pattern representation of
that word based on the number assigned to each letter.
Attributes:
DICTIONARY_FILE (str): String containing absolute path to dictionary.txt file.
Note:
* Download the dictionary file from https://invpy.com/dictionary.txt
* https://www.nostarch.com/crackingcodes (BSD Licensed)
"""
import pprint
DICTIONARY_FILE = '/home/jose/PycharmProjects/python-tutorials/pythontutorials/books/CrackingCodes/Ch11/dictionary.txt'
[docs]def getWordPattern(word: str) -> str:
"""Get word pattern
Returns a string of the pattern form of the given word.
Args:
word: String containing word to convert into word pattern.
Example:
>>> import pythontutorials.books.CrackingCodes.Ch17.makeWordPatterns as makeWordPatterns
>>> makeWordPatterns.getWordPattern('DUSTBUSTER')
'0.1.2.3.4.1.2.3.5.6'
Returns:
String containing word pattern.
"""
word = word.upper()
nextNum = 0
letterNums = {}
wordPattern = []
for letter in word:
if letter not in letterNums:
letterNums[letter] = str(nextNum)
nextNum += 1
wordPattern.append(letterNums[letter])
return '.'.join(wordPattern)
[docs]def main():
allPatterns = {}
fo = open(DICTIONARY_FILE)
wordList = fo.read().split('\n')
fo.close()
for word in wordList:
# Get the pattern for each string in wordList:
pattern = getWordPattern(word)
if pattern not in allPatterns:
allPatterns[pattern] = [word]
else:
allPatterns[pattern].append(word)
# This is code that writes code. The wordPatterns.py file contains
# one very, very large assignment statement:
fo = open('wordPatterns.py', 'w')
fo.write('allPatterns = ')
fo.write(pprint.pformat(allPatterns))
fo.close()
if __name__ == '__main__':
main()