Python -data in files and arrays(order, list class, sort method, reverse method)

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 4(data in files and arrays: Sort it out)、Sharpen your pencil(p.139)を解いてみる。

Sharpen your pencil(p.139)

コード(BBEdit)

sample139,.py

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

scores = []
with open('results.txt') as result_f:
    for line in result_f:
        name, score = line.split()
        scores.append(float(score))

# scores.sort()
# scores.reverse()
scores.sort(reverse=True)
print('the top 3 scores')
print(scores[0], scores[1], scores[2], sep='\n')

入出力結果(Terminal)

$ ./sample139.py
the top 3 scores
9.12
8.65
8.45
$