Raspberry Pi buttons

raspberry_pi_buttons_example.py

import RPi.GPIO as GPIO # Import Raspberry Pi GPIO library

GPIO.setwarnings(False) # Ignore warning for now
GPIO.setmode(GPIO.BCM)  # Use Broadcom GPIO numbers
                        # not BOARD for pin numbers
# This example is based on using the buttons in this hardware:
# https://learn.adafruit.com/adafruit-2-2-pitft-hat-320-240-primary-display-for-raspberry-pi/
Button1 = 17 # Board pin 11
Button2 = 22 # Board pin 15
Button3 = 23 # Board pin 23
Button4 = 27 # Board pin 25

GPIO.setup(Button1, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(Button2, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(Button3, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(Button4, GPIO.IN, pull_up_down=GPIO.PUD_UP)

while True: # Run forever
    if GPIO.input(Button1) == GPIO.LOW:
        print("Button1 was pushed!")
    if GPIO.input(Button2) == GPIO.LOW:
        print("Button2 was pushed!")
    if GPIO.input(Button3) == GPIO.LOW:
        print("Button3 was pushed!")
    if GPIO.input(Button4) == GPIO.LOW:
        print("Button4 was pushed!")

Note -- while this works, you should use gpiozero instead of RPi.GPIO as is done in this gist.
https://gpiozero.readthedocs.io/en/stable/api_input.html#button