Some File Editing for the PCA9685?

import time
import os

with open("/sys/class/i2c-adapter/i2c-2/2-0070/pwm/pwmchip9/pwm-9:0/enable", "w") as a:
    a.write = int(0)
    time.sleep(2)
    a.write = int(1)

with open("/sys/class/i2c-adapter/i2c-2/2-0070/pwm/pwmchip9/pwm-9:0/period", "w") as b:
    b.write = int(10000000)

with open("/sys/class/i2c-adapter/i2c-2/2-0070/pwm/pwmchip9/pwm-9:0/duty_cycle", "w") as c:
    c.write = int(1000000)

try:
    angle = int(input("0 to 180: "))
    if True:
        if angle == 0 or angle == 45:
            time.sleep(3)
            a.write = int(1)
            b.write = int(10000000)
            c.write = int(2000000)

        elif angle == 90 or angle ==  135:
            time.sleep(3)
            a.write = int(1)
            b.write = int(10000000)
            c.write = int(1500000)

        else:
            time.sleep(2)
            a.write = int(1)
            b.write = int(10000000)
            c.write = int(1000000)
    if not True:
        a.write = int(0)
except:
    KeyboardInterrupt
    print("Hello, you have exited the program.")