Python - Py Filling: Lists, Tuples, Dictionaries, and Sets(dict, nest,keys method, values method)

Introducing Python
Modern Computing in Simple Packages
( O'Reilly Media)
Bill Lubanovic (著)

開発環境

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

Introducing Python: Modern Computing in Simple Packages(Bill Lubanovic (著)、 O'Reilly Media)のChapter 3(Py Filling: Lists, Tuples, Dictionaries, and Sets)、Things to Do 3.15, 16, 17, 18.を解いてみる。

Things to Do 3.15, 16, 17, 18.

入出力結果(Terminal, IPython)

$ ipython
Python 3.4.2 (default, Nov  1 2014, 16:32:22) 
Type "copyright", "credits" or "license" for more information.

IPython 2.3.1 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: life = dict(animals=dict(cats=['Henri', 'Grumpy', 'Lucy'], octopi={}, emus={}), plants={}, other={} )

In [2]: life
Out[2]: 
{'animals': {'emus': {}, 'octopi': {}, 'cats': ['Henri', 'Grumpy', 'Lucy']},
 'other': {},
 'plants': {}}

In [3]: life.keys()
Out[3]: dict_keys(['animals', 'other', 'plants'])

In [4]: life['animals'].keys()
Out[4]: dict_keys(['emus', 'octopi', 'cats'])

In [5]: life['animals']['cats']
Out[5]: ['Henri', 'Grumpy', 'Lucy']

In [6]: quit()
$