Python - Structured Data: Working With Structured Data(FREQUENCY-COUNT)

Head First Python

開発環境

• macOS Sierra - Apple (OS)
• Emacs (Text Editor)
• Python 3.6 (プログラミング言語)

Head First Python (Paul Barry (著)、O'Reilly Media)のChapter 3.(Structured Data: Working With Structured Data) の FREQUENCY/-COUNT MAGNETS(No. 2218) を取り組んでみる。

FREQUENCY/-COUNT MAGNETS(No. 2218)

コード(Emacs)

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

vowels = ['a', 'e', 'i', 'o', 'u']
# word = input('Provide a word to search for vowels: ')
with open('vowels4.py') as f:
    word = f.read().replace('\n', '')

found = {}
found['a'] = 0
found['e'] = 0
found['i'] = 0
found['o'] = 0
found['u'] = 0

for letter in word:
    if letter in vowels:
        found[letter] += 1

for k, v in sorted(found.items()):
    print(k, 'was found', v, 'time(s)')

入出力結果(Terminal, IPython)

$ ./vowels4.py
a was found 8 time(s)
e was found 22 time(s)
i was found 14 time(s)
o was found 28 time(s)
u was found 14 time(s)
$