Python - Files(shelve module)

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 14.(Files)のExercises 14-2.(No. 3375)を取り組んでみる。

Exercises 14-2.(No. 3375)

コード(Emacs)

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

import anagram_sets
import shelve


def store_anagrams(anagrams):
    with shelve.open('anagrams') as shelf:
        for k, v in anagrams.items():
            shelf[k] = v


def read_anagrams(word):
    with shelve.open('anagrams') as shelf:
        res = shelf.get(word)
    return res

if __name__ == '__main__':
    filename = 'words.txt'
    anagrams = anagram_sets.all_anagrams(filename)
    store_anagrams(anagrams)
    print(read_anagrams('opst'))

入出力結果(Terminal, IPython)

$ ./sample2.py
['opts', 'post', 'pots', 'spot', 'stop', 'tops']
$