Updating pip command to bring in smbus too.

[ptorru]

Had to do this on a fresh install of :

Raspbian Buster Lite
Version: February 2020
Release date: 2020-02-13
Kernel version: 4.19
SHA-256: 12ae6e17bf95b6ba83beca61e7394e7411b45eba7e6a520f434b0748ea7370e8

Tested on a raspberry pi zero-w

Hope it is useful :)

[Gadgetoid]

Thank you!

I tend to be a little apprehensive about pulling smbus from PyPI since there's a "more correct" (frequently maintained?) package in apt. If it works, though, it's worth rolling with. Might break horribly on Python 3.6+ since there's no ".whl" package released for any version newer than 3.5 and I don't know how much we can lean on PiWheels for that.

[ptorru]

Great to see it through! happy to help :)