How do I get the device ID of my printer for a Python script

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printing

Python3.6

I have this sample code here that is supposed to choose one particular printer when trying to print or scan something. But to do so with my code below, I need the name of the device and I couldn't figure out a way to get the right name, so the script recognizes the right device:

devs = pyinsane2.get_devices()
	devices = None

	for dev in devs:
		if dev.name == "hplip://32.13241":
			devices = dev
			break

	if devices is None:
		print("Not found")
	else:
		print("Will use {} {}".format(devices.vendor, devices.model)

hplip://xxx is obviously the printer, but this one is the printer of the sample. I need to insert my own printer ID in there. Anybody knows how I get this ?
In my current code, where it just chooses the Printer on its own, it tells me it found the printer

'Brother MFC-J6710DW LAN' (Brother, Brother MFC-J6710DW LAN, scanner,streaming_video)

.
is it the device ID? Can anyone tell me what the number in the smaple code stands for?

What I have tried:

Insterting the found printer name as name doesn't work. So it looks like this:

for dev in devs:
		if dev.name == "'Brother MFC-J6710DW LAN' (Brother, Brother MFC-J6710DW LAN, scanner,streaming_video)":
			devices = dev
break 

This doen't work and it chooses

None