stop program python
# Do stuff stop = input("Would you like to stop the program? ") if stop == "y": exit() else: # do stuff
stop program python
# Do stuff stop = input("Would you like to stop the program? ") if stop == "y": exit() else: # do stuff
thread stop python
# Python program using # traces to kill threads import sys import trace import threading import time class thread_with_trace(threading.Thread): def __init__(self, *args, **keywords): threading.Thread.__init__(self, *args, **keywords) self.killed = False def start(self): self.__run_backup = self.run self.run = self.__run threading.Thread.start(self) def __run(self): sys.settrace(self.globaltrace) self.__run_backup() self.run = self.__run_backup def globaltrace(self, frame, event, arg): if event == 'call': return self.localtrace else: return None def localtrace(self, frame, event, arg): if self.killed: if event == 'line': raise SystemExit() return self.localtrace def kill(self): self.killed = True def func(): while True: print('thread running') t1 = thread_with_trace(target = func) t1.start() time.sleep(2) t1.kill() t1.join() if not t1.isAlive(): print('thread killed') In this code, start() is slightly modified to set the system trace function using settrace(). The local trace function is defined such that, whenever the kill flag (killed) of the respective thread is set, a SystemExit exception is raised upon the excution of the next line of code, which end the execution of the target function func. Now the thread can be killed with join().
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