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 10(Reading and Writing Files)、10.10(Exercises) 6.を解いてみる。
10.10(Exercises) 6.
コード(BBEdit)
sample6.py
#!/usr/bin/env python3 #-*- coding: utf-8 -*- import time_series def smallestValue(reader): line = time_series.skipHeader(reader).strip() if line != '': smallest = int(line) for line in reader: value = int(line.strip()) if value >= smallest: continue smallest = value return smallest if __name__ == '__main__': import sys with open(sys.argv[1], 'r') as input_file: print(smallestValue(input_file))
入出力結果(Terminal, IPython)
$ cat hopedale.txt 22 29 2 16 12 35 8 83 166 $ cat temp.txt # header $ ./sample6.py hopedale.txt 2 $ ./sample6.py temp.txt None $
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