stoppable_thread.py

from theading import Thread

class StoppableThread(Thread):
    """A thread which can be stopped from thread reference."""
    
    do_run = True
    
    def stop(self):
        """Stop this thread."""
        self.do_run = False
        
    def run(self):
        """What the thread does (the worker code)."""
        try:
            while self.do_run:
                if self._target:
                    self._target(*self._args, **self._kwargs)
        finally:
            # Avoid a refcycle if the thread is running a function with
            # an argument that has a member that points to the thread.
            del self._target, self._args, self._kwargs
        print('Thread is stopping')

usage.py

from stoppable_thread import StoppableThread as ST
from time import sleep

# Create a worker function
def worker():
    print("I'M STILL ALIVE!!")
    sleep(3)

t = ST(target=worker)

sleep(10)
# I'M STILL ALIVE!!
# I'M STILL ALIVE!!
# I'M STILL ALIVE!!

t.stop()
# Thread is stopping