Python - Using Methods - str class, methods(upper, lower, swapcase, isupper, count, endswith, startswith, format)

Practical Programming
楽天ブックス 紀伊国屋書店

開発環境

• macOS Catalina - Apple (OS)
• Emacs (Text Editor)
• Windows 10 Pro (OS)
• Visual Studio Code (Text Editor)
• Python 3.7 (プログラミング言語)

Practical Programming: An Introduction to Computer Science Using Python 3.6 (Paul Gries(著)、Jennifer Campbell(著)、Jason Montojo(著)、Pragmatic Bookshelf)のChapter 7(Using Methods)、Exercises 1の解答を求めてみる。

コード

Python 3

#!/usr/bin/env python3
from unittest import TestCase, main

print('1.')


class MyTestCase(TestCase):
    def test(self):
        egg = [('hello'.upper(), 'HELLO'),
               (('Happy Birthday').lower(), 'happy birthday'),
               ('WeeeEEEEeeeEEEEeee'.swapcase(), 'wEEEeeeeEEEeeeeEEE'),
               ('ABC123'.isupper(), True),
               ('aeiouAEIOU'.count('a'), 1),
               ('hello'.endswith('o'), True),
               ('hello'.startswith('H'), False),
               ('Hello {0}'.format('Python'), 'Hello Python'),
               ('Hello {0}! Hello {1}!'.format(
                'Python', 'World'), 'Hello Python! Hello World!')]
        for s, t in egg:
            self.assertEqual(s, t)


if __name__ == '__main__':
    main()

入出力結果(Zsh、cmd.exe(コマンドプロンプト)、Terminal、Jupyter(IPython))

% ./sample1.py
1.
.
----------------------------------------------------------------------
Ran 1 test in 0.000s

OK
%