Python - 関数引数(string, find method)

Programming Python
( O'Reilly Media)
Mark Lutz(著)

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)

Head First C ―頭とからだで覚えるCの基本(David Griffiths (著)、Dawn Griffiths (著) 中田 秀基(監訳)(翻訳)、木下 哲也 (翻訳)、オライリージャパン)の7章(高度な関数: 関数を最大限に活用する)、エクササイズ(p.321)をpythonで考えてみる。

エクササイズ(p.321)

コード(BBEdit, Emacs)

sample321.py

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

ads = ["William: SBM GSHO likes sports, TV, dining",
       "Matt: SUM NS likes art, movies, theater",
       "Luis: SLM ND likes books, theater, art",
       "Mike: DWM DS likes trucks, sports and bieber",
       "Peter: SAM likes chess, working out and art",
       "Josh: SJM likes sports, movies and theater",
       "Jed: DBM likes theater, books and dining"]


def sports_or_workout(s):
    return s.find('sports') != -1 or s.find('working') != -1

def ns_theater(s):
    return s.find('NS') != -1 and s.find('theater') != -1

def arts_theater_or_dining(s):
    return s.find('art') != -1 or s.find('theater') != -1 or \
           s.find('dining') != -1

def find(f):
    print('検索結果:')
    print('--------------------------------------------------')
    for ad in ads:
        if f(ad):
            print(ad)
    print('--------------------------------------------------')

if __name__ == '__main__':
    print(ads)
    for f in [sports_or_workout, ns_theater, arts_theater_or_dining]:
        find(f)

入出力結果(Terminal, IPython)

$ ./sample321.py 
['William: SBM GSHO likes sports, TV, dining', 'Matt: SUM NS likes art, movies, theater', 'Luis: SLM ND likes books, theater, art', 'Mike: DWM DS likes trucks, sports and bieber', 'Peter: SAM likes chess, working out and art', 'Josh: SJM likes sports, movies and theater', 'Jed: DBM likes theater, books and dining']
検索結果:
--------------------------------------------------
William: SBM GSHO likes sports, TV, dining
Mike: DWM DS likes trucks, sports and bieber
Peter: SAM likes chess, working out and art
Josh: SJM likes sports, movies and theater
--------------------------------------------------
検索結果:
--------------------------------------------------
Matt: SUM NS likes art, movies, theater
--------------------------------------------------
検索結果:
--------------------------------------------------
William: SBM GSHO likes sports, TV, dining
Matt: SUM NS likes art, movies, theater
Luis: SLM ND likes books, theater, art
Peter: SAM likes chess, working out and art
Josh: SJM likes sports, movies and theater
Jed: DBM likes theater, books and dining
--------------------------------------------------
$