#!/usr/bin/python3

import usb.core
import usb.util

VENDOR_ID = 0x046d
PRODUCT_ID = 0xc640

# find the USB device
device = usb.core.find(idVendor=VENDOR_ID,
                       idProduct=PRODUCT_ID)

# use the first/default configuration
device.set_configuration()

# first endpoint
endpoint = device[0][(0,0)][0]

# read a data packet
data = None
data = device.read(endpoint.bEndpointAddress,endpoint.wMaxPacketSize)
print (data)