Halting if command if gpio triggered event triggered

[knoxvilles_joker]

I am tweaking this code to get it ready for full integration into an animatronics costume setup. The individual pieces work. basically the GPIO triggers are limit switches. I am trying to build things such that if things slip or move that it will move forward if I hit the forward or backward button again and stop once the limit switch is triggered.

The way the libraries are it appears that it will stop as it is running through a for I range loop but will backup once that loop finishes if the gpio gets triggered.

I will keep researching and will probably sleep on things after I spend all evening researching different approaches on this conundrum. I just need to chew on things but more minds can help come up with unexpected solutions.

This is the code:

#!/usr/bin/python

import cwiid
import RPi.GPIO as GPIO
import sys
from time import *
import subprocess
import board

#this is for stepper motor controls, keyboard initiates movement, Button is limit switches
import keyboard

#gpiozero is the only library I have found that functions with the current pi and hardware setup I am using
from gpiozero import Button

#these are part of the Blinka libraries Adafruit has.  
from adafruit_motorkit import MotorKit
from adafruit_motor import stepper
kit1 = MotorKit()

# this is for stepper motors and servo board
from board import SCL, SDA
import busio
from adafruit_pca9685 import PCA9685
i2c_bus = busio.I2C(SCL, SDA)
pca = PCA9685(i2c_bus)
pca.frequency = 50

# standard servo declearations for controls
from adafruit_servokit import ServoKit
kit = ServoKit(channels=16)

#12 and 13 are for one motion assembly backing up one full turn
button12 = Button(12)
button13 = Button(13)
#27 and 5 are for the other motion assembly
button27 = Button(27)
button5 = Button(5)
# while True loops endlessly.  This can be run as a service using systemd or setup as an init.d script or as an rc.local script.
while True:

  if button12.is_pressed:
    print("button12 pressed")
    for i in range (200):
      kit1.stepper1.onestep(direction=stepper.BACKWARD, style=stepper.DOUBLE)

  if button13.is_pressed:
    print("button13 pressed")
    for i in range (200):
      kit1.stepper1.onestep(direction=stepper.FORWARD, style=stepper.DOUBLE)

  if keyboard.is_pressed('f'):
    print("f is pressed")
    for i in range (200):
      kit1.stepper1.onestep(direction=stepper.BACKWARD, style=stepper.DOUBLE)

  if keyboard.is_pressed('b'):
    print("b is pressed")
    for i in range (200):
      kit1.stepper1.onestep(direction=stepper.FORWARD, style=stepper.DOUBLE)

# This is for channel 2 stepper motor.  

  if button27.is_pressed:
    print("button12 pressed")
    for i in range (200):
      kit1.stepper2.onestep(direction=stepper.BACKWARD, style=stepper.DOUBLE)

  if button5.is_pressed:
    print("button13 pressed")
    for i in range (200):
      kit1.stepper2.onestep(direction=stepper.FORWARD, style=stepper.DOUBLE)

  if keyboard.is_pressed('r'):
    print("f is pressed")
    for i in range (200):
      kit1.stepper2.onestep(direction=stepper.BACKWARD, style=stepper.DOUBLE)

  if keyboard.is_pressed('l'):
    print("b is pressed")
    for i in range (200):
      kit1.stepper2.onestep(direction=stepper.FORWARD, style=stepper.DOUBLE)