Doorbell python

import RPi.GPIO as GPIO
import subprocess
import time
import pynma
from pynma import PyNMA

ledPin = 18
buttonPin = 23
holdTime = 2
tapTime = 0.01
nextInterval = 0.0
lastId = 1
doorapi = pynma.PyNMA("pynma_api_key_goes_here")

def tap():
    GPIO.output(ledPin, GPIO.HIGH)
    doorapi.push("Door", "Doorbell", "Ding Dong!", "/home/pinkythepig/HA/Testfile.png")
    time.sleep(3)
    GPIO.output(ledPin, GPIO.LOW)

def hold():
    GPIO.output(ledPin, GPIO.HIGH)
    doorapi.push("Door", "Doorbell", "Ding Dong! Button was held", "/home/pinkythepig/HA/Testfile.png")
    time.sleep(3)
    GPIO.output(ledPin, GPIO.LOW)

GPIO.setmode(GPIO.BCM)
GPIO.setup(ledPin, GPIO.OUT)
GPIO.setup(buttonPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.output(ledPin, GPIO.HIGH)
prevButtonState = GPIO.input(buttonPin)
prevTime        = time.time()
tapEnable       = False
holdEnable      = False

while(True):

  time.sleep(0.15)
  # Poll current button state and time
  buttonState = GPIO.input(buttonPin)
  t = time.time()

  # Has button state changed?
  if buttonState != prevButtonState:
    prevButtonState = buttonState   # Yes, save new state/time
    prevTime = t
  else:                             # Button state unchanged
    if (t - prevTime) >= holdTime:  # Button held more than 'holdTime'?
      # Yes it has.  Is the hold action as-yet untriggered?
      if holdEnable == True:        # Yep!
        hold()                      # Perform hold action (usu. shutdown)
        holdEnable = False          # 1 shot...don't repeat hold action
        tapEnable  = False          # Don't do tap action on release
    elif (t - prevTime) >= tapTime: # Not holdTime.  tapTime elapsed?
      # Yes.  Debounced press or release...
      if buttonState == True:       # Button released?
        if tapEnable == True:       # Ignore if prior hold()
          tap()                     # Tap triggered (button released)
          tapEnable  = False        # Disable tap and hold
          holdEnable = False
      else:                         # Button pressed
        tapEnable  = True           # Enable tap and hold actions
        holdEnable = True

  # LED blinks while idle, for a brief interval every 2 seconds.
  # Pin 18 is PWM-capable and a "sleep throb" would be nice, but
  # the PWM-related library is a hassle for average users to install
  # right now.  Might return to this later when it's more accessible.
  if ((int(t) & 1) == 0) and ((t - int(t)) < 0.15):
    GPIO.output(ledPin, GPIO.HIGH)
  else:
    GPIO.output(ledPin, GPIO.LOW)