This is an updated and shortened question.
Communicating with a USB-device should be easy via PyUSB. So, I\'m trying to read from a USB-device (oscilloscope) using PyUSB
SCPI is not enabled by default on OWON devices. According to the page#3 of the manual you need to send :SDSLSCPI# command to switch to the SCPI mode.
:SDSLSCPI#