bot.py
loop = StartLoop()
if call.data == 'start_loop':
loop.start()
elif call.data == 'stop_loop':
loop.stop()
loopbot.py
class StartLoop():
def __init__(self):
self.loopflag = True
def start(self):
while self.loopflag:
<do something>
def stop(self):
self.loopflag = False