GPIO Relay On

#!/usr/bin/env python

# Import required Python libraries
import RPi.GPIO as GPIO
import time

# Use BCM GPIO references instead of physical pin numbers
GPIO.setmode(GPIO.BCM)

# init list with pin numbers

pinList = [3]

# loop through pins and set mode and state to 'low'

for i in pinList:
    GPIO.setwarnings(False)
    GPIO.setup(i, GPIO.OUT)
    GPIO.output(i, GPIO.HIGH)

def trigger() :
        for i in pinList:
          GPIO.output(i, GPIO.LOW)
#         GPIO.cleanup()


try:
    trigger()


except KeyboardInterrupt:
  print("  Quit")
  # Reset GPIO settings
  GPIO.cleanup()