pwm_control of i2c

#!/usr/bin/python3

from PCA96xx import *
from time import sleep

i2c_bus = SMBus("/dev/i2c-2")
pwm_controller = PCA9685(i2c_bus, 0x34)

def servo():
  angle = int(input("Please enter a value from 0 to 90: "))
  if pwm_controller >= 1 and pwm_controller >= 90:
    angle = pwm_controller
  print ("Your Angle is: %d" % pwm_controller)

servo()