button.py

#button
import time
import RPi.GPIO as GPIO
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)

class Button:
 def __init__(self, pin):
 self.pin=pin
 GPIO.setup(pin, GPIO.IN, GPIO.PUD_UP)
 self.state=1
 self.lastdebounce=0
 
 def run(self):
 elapsedtime=time.time()-self.lastdebounce
 if elapsedtime<0.01:
 return False
 self.lastdebounce=time.time()
 state=GPIO.input(self.pin)
 #print(self.state,state)
 pushed=False
 if self.state>state:
 pushed=True
 self.state=state
 return pushed
 
if __name__=='__main__':
 btn=Button(27)
 while True:
 time.sleep(0.001)
 if btn.run()==True:
 print('pressed')