SMBUS2 and PATHLIB

from smbus2 import SMBus
import time
import pathlib

# reset pin is P9.23, i.e. gpio1.17
reset_pin = pathlib.Path('/sys/class/gpio/gpio49/direction')
reset_pin.write_text('low')

MotorBridge = SMBus(0x4b, 2)

ReadMode  = 0
WriteMode = 1
DeAddr    = 0X4B
ConfigValid =  0x3a6fb67c
DelayTime = 0.005