Python -textual data(substring)

Head First Programming
A learner's guide to programming
using the Python language
( O'Reilly Media; )
David Griffiths (著) Paul Barry (著)

開発環境

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

Head First Programming A learner's guide to programming using the Python language (David Griffiths(著)、Paul Barry(著)、 O'Reilly Media; )のChapter 2(textual data: Every string has its place)、Sharpen your pencil(p.43, 45)を解いてみる。

Sharpen your pencil(p.43, 45)

コード(BBEdit)

sample43.py

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

s = 'But where is Waldo?'

print(s[5:9] == 'here')
print(s[10:12] == 'is')
print(s[13:18] == 'Waldo')

入出力結果(Terminal)

$ ./sample43.py
True
True
True
$

コード(BBEdit)

sample45.py

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

import urllib.request

page = urllib.request.urlopen('http://beans-r-us.appspot.com/prices.html')
text = page.read().decode('utf8')

# 65 61 13 47 44
price = text[234:238]
print(price)

入出力結果(Terminal)

$ ./sample45.py
6.22
$