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#! /usr/bin/python | |
# -*- coding: utf-8 -*- | |
import sys | |
import numpy as np | |
import warnings | |
in_filename = "empty.dat" | |
data="" | |
## with文はC#のusingみたいなもん | |
## http://d.hatena.ne.jp/reiki4040/20130331/1364723288 | |
with warnings.catch_warnings(): | |
## 警告フィルタを設定.引っかかる警告は全部エラーに変更. | |
## 以降,警告を例外と同じように扱える | |
warnings.filterwarnings("error") | |
try : | |
data = np.loadtxt(in_filename, ndmin=2) | |
except IOError as e: | |
err_msg = "IOError: \n" | |
err_msg += "\t Your Input: " | |
for arg in sys.argv: err_msg += arg + " " | |
err_msg += "\n\t " + e.strerror | |
sys.stderr.write(err_msg) | |
sys.exit() | |
except UserWarning as warning: | |
#print warning.args | |
err_msg = "UserWarning: \n" | |
err_msg += "\t Your Input: " | |
for arg in sys.argv: err_msg += arg + " " | |
err_msg += "\n\t " + str(warning) | |
#sys.stderr.write(err_msg) | |
print err_msg | |
sys.exit() | |
## 入力ファイルが空でないならデータが出力される | |
print data |
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