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Keyboard input with timeout in Python
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| import sys, select | |
| print "You have ten seconds to answer!" | |
| i, o, e = select.select( [sys.stdin], [], [], 10 ) | |
| if (i): | |
| print "You said", sys.stdin.readline().strip() | |
| else: | |
| print "You said nothing!" |
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| import signal | |
| TIMEOUT = 5 # number of seconds your want for timeout | |
| def interrupted(signum, frame): | |
| "called when read times out" | |
| print 'interrupted!' | |
| signal.signal(signal.SIGALRM, interrupted) | |
| def input(): | |
| try: | |
| print 'You have 5 seconds to type in your stuff...' | |
| foo = raw_input() | |
| return foo | |
| except: | |
| # timeout | |
| return | |
| # set alarm | |
| signal.alarm(TIMEOUT) | |
| s = input() | |
| # disable the alarm after success | |
| signal.alarm(0) | |
| print 'You typed', s |
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| import threading, msvcrt | |
| import sys | |
| def readInput(caption, default, timeout = 5): | |
| class KeyboardThread(threading.Thread): | |
| def run(self): | |
| self.timedout = False | |
| self.input = '' | |
| while True: | |
| if msvcrt.kbhit(): | |
| chr = msvcrt.getche() | |
| if ord(chr) == 13: | |
| break | |
| elif ord(chr) >= 32: | |
| self.input += chr | |
| if len(self.input) == 0 and self.timedout: | |
| break | |
| sys.stdout.write('%s(%s):'%(caption, default)); | |
| result = default | |
| it = KeyboardThread() | |
| it.start() | |
| it.join(timeout) | |
| it.timedout = True | |
| if len(it.input) > 0: | |
| # wait for rest of input | |
| it.join() | |
| result = it.input | |
| print '' # needed to move to next line | |
| return result | |
| # and some examples of usage | |
| ans = readInput('Please type a name', 'john') | |
| print 'The name is %s' % ans | |
| ans = readInput('Please enter a number', 10 ) | |
| print 'The number is %s' % ans |
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