Python - Case Study Word Play(Looping with indices)

Think Python

開発環境

• OS X El Capitan - Apple (OS)
• Emacs (Text Editor)
• Python 3.5 (プログラミング言語)

Think Python (Allen B. Downey (著)、 O'Reilly Media)のChapter 9.(Case Study Word Play)のExercises 9-7(No. 2052)を取り組んでみる。

Exercises 9-7(No. 2052)

コード(Emacs)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

def is_three(word):
    i = 0
    n = 0
    while i < len(word) - 1:
        if word[i] == word[i + 1]:
            n += 1
            if n == 3:
                return True
            i += 2
        else:
            i += 1
            n = 0
    return False
                
    
            
if __name__ == '__main__':
    with open('words.txt') as f:
        for line in f:
            for word in line.split():
                if is_three(word):
                    print(word)

入出力結果(Terminal, IPython)

$ ./sample7.py
bookkeeperc
bookkeepers
bookkeeping
bookkeepings
$