python - Using two dictionary keys (key 1 _and_ 2) to determine value -

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i have python script read 2 bytes out of preexisting binary. 1 byte determines device type , next determines sub-device type. both defines overall device.

for instance: 

x41 , x01 = printer x43 , x01 = audio device

my code need find both x41 , x01 there printer, instance.

i thought doing dictionary, think means 2 keys per value , doesn't quite trivial implement (at least skillset).

is dictionary approach? or else better?

like said in comments, 2 approachs possible:

devices={(0x41,0x01) : 'printer' , (0x43,0x01) : 'audio device', ...}

or 

computerdevices={ 0x41 : 'printer' , 0x43 : 'audio device', ...} kitchendevices={ 0x41 : 'roaster' , 0x26 : 'oven', ...} ... devices = {0x01: computerdevices , 0x02 :kitchendevices, ...}

you can concatenate bytes : key =bytes([0x43,0x01]) , use dictionary key.


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