Convert _READ_CMD to bytes to work with memview (Blinka)

[caternuson]

For #5. This is a Blinka only issue. Simple fix, just convert the list to bytes.

Tested with FT232H:

$ python3
Python 3.8.10 (default, Jun  2 2021, 10:49:15) 
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import board
>>> import adafruit_sgp40
>>> sgp = adafruit_sgp40.SGP40(board.I2C())
>>> sgp.raw
2
>>>  

[tannewt]

If you use a byte string, b"\x00..." then you'll save more space. As is it's a list of ints that gets converted on import to a bytes.

[caternuson]

Done! yah, i was being lazy :)

(tested and still works)

[LittleMatchaGirl]

I see the solutions now, I have to convert one thing to another list to bytes.... but how exactly? I am assuming its a couple lines of code, but do I need values? or is the b"\x00..." sufficient and do I have to add something else to that? Sorry, I am just a little confused and do not want to mess up, I already had to wipe my sdx and start fresh. Please and thank you!!

[ramenbytes]

@LittleMatchaGirl You don't need to do anything. Pull requests are used to propose some changes to the code in the repository, in this case caternuson has proposed a change that creates bytes instead of a list. Click on the "convert _READ_CMD to bytes" line under his top message to see the code he changed in the library. Once the pull request is approved and accepted, and you use the updated version of the library, the problem should go away without you needing to change code yourself.

[caternuson]

Yep. The only action needed on your end will be to update the library - once the PR is merged and the update released. Until then, it's just a waiting game. I'll try and remember to respond in your issue thread once this all done.