Python - Storing Collections of Data Using Lists(nested list, negative indices)

Practical Programming
An Introduction to Computer Science
Using Python 3
(Pragmatic Programmers)
(Pragmatic Bookshelf)
Paul Gries (著) Jennifer Campbell (著)
Jason Montojo (著) Lynn Beighley (編集)

開発環境

• OS X Mavericks - Apple(OS)
• Emacs (CUI)、BBEdit - Bare Bones Software, Inc. (GUI) (Text Editor)
• Python 3.4 (プログラミング言語)

Practical Programming: An Introduction to Computer Science Using Python 3 (Pragmatic Programmers) (Paul Gries (著)、Jennifer Campbell (著)、Jason Montojo (著)、Lynn Beighley (編集)、Pragmatic Bookshelf)のChapter 8(Storing Collections of Data Using Lists)、8.9(Exercises) 11.を解いてみる。

8.9(Exercises) 11.

コード(BBEdit)

sample11.py

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

units = [['km', 'miles', 'league'], ['kg', 'pound', 'stone']]

print('a.')
print(units[-2])

print('b.')
print(units[-1])

print('c.')
print(units[-2][-3])

print('d.')
print(units[-1][-3])

print('e.')
print(units[-2][-2:])

print('f.')
print(units[-1][:-1])

入出力結果(Terminal, IPython)

$ ./sample11.py
a.
['km', 'miles', 'league']
b.
['kg', 'pound', 'stone']
c.
km
d.
kg
e.
['miles', 'league']
f.
['kg', 'pound']
$