Python - Designing and Using Functions(built-in function max)

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 3(Designing and Using Functions)、3.11-7.を解いてみる。

3.11-7.

コード(BBEdit)

sample7.py

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

def average_3(grade1, grade2, grade3):
    return (grade3 + grade2 + grade3) / 3

def average_top3(grade1, grade2, grade3, grade4):
    return max(average_3(grade1, grade2, grade3),
               average_3(grade1, grade2, grade4),
               average_3(grade1, grade3, grade4),
               average_3(grade2, grade3, grade4))

if __name__ == '__main__':
    print(average_top3(1, 2, 3, 4))
    print(average_3(2, 3, 4))

入出力結果(Terminal, IPython)

$ ./sample7.py
3.6666666666666665
3.6666666666666665
$