Python code to check any Raspberry Pi GPIO status

check_gpio.py

#!/usr/bin/env python
 
import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM)
while True:
    data = raw_input("Insert GPIO BCN number to check status (blank to quit): ")
    if data == '':
        break
    try:
        number = int(data)
    except:
        continue
    GPIO.setup(number, GPIO.IN) 
    st = GPIO.input(number)
    print st

raw_input is a python2 built-in function, python3 has renamed to input. So if you want to use this snipped with python3 you have to change line 7 and use input()