Created
May 30, 2015 03:42
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Simple key input with time out on python. タイムアウト付きキー入力。
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# -*- coding: utf-8 -*- | |
# This code is distributed under the 3-Clause BSD license (New BSD license). | |
# 基本的に作者の名前を書いていただければ、商用利用も可能です。なお、保証はいたしかねます。 | |
__author__ = 'alfredplpl' | |
# This fucntion can use on Unix systems (Mac or Linux) . | |
TIMEOUT_VAL=-1 | |
def waitKey(miliseconds): | |
import signal | |
# a function to raise a exception. | |
def timeout(signum, frame): raise RuntimeError("timeout.") | |
signal.signal(signal.SIGALRM,timeout) | |
signal.alarm(miliseconds/1000) | |
try: | |
key=raw_input() | |
except(RuntimeError): | |
key=TIMEOUT_VAL | |
finally: | |
signal.alarm(0) | |
return key | |
#A sample code | |
#The following code doesn't run if you import this. | |
#importしても実行されないので無視してimportしてください | |
if __name__ == "__main__": | |
print "Input any key..." | |
key=waitKey(0) | |
key=TIMEOUT_VAL | |
while(key==TIMEOUT_VAL): | |
print "wait for a key..." | |
#wait for 1000msec | |
key=waitKey(1000) | |
print key | |
# References: http://stackoverflow.com/questions/1335507/keyboard-input-with-timeout-in-python | |
# ライセンスに関する参考URL: http://osdn.jp/projects/opensource/wiki/licenses%2Fnew_BSD_license | |
# Copyright (c) 2015, alfredplpl | |
# All rights reserved. |
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