Python - List Data: Working With Ordered Data(pop, remove, insert)

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 2.(List Data: Working With Ordered Data) の SHARPEN YOUR PENCIL(No. 1542) を取り組んでみる。

SHARPEN YOUR PENCIL(No. 1542)

コード(Emacs)

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

phrase = "Don't panic!"
plist = list(phrase)
print(phrase)
print(plist)

plist.pop(0)                    # "on't panic!"
plist.remove("'")               # "ont panic!"
plist.insert(2, plist.pop(3))   # "on tpanic!"
plist.insert(4, plist.pop(5))   # "on tapnic!"
for _ in range(4):
    plist.pop()

new_phrase = ''.join(plist)
print(new_phrase)

入出力結果(Terminal, IPython)

$ ./panic.py
Don't panic!
['D', 'o', 'n', "'", 't', ' ', 'p', 'a', 'n', 'i', 'c', '!']
on tap
$