Documentation, Install

Re: https://github.com/rm-hull/luma.oled/blob/master/doc/install.rst

May I suggest simply duplicating the required command for their Python 3 counterparts, and removing the equally long substitution list? This would simplify and eliminate error, since not all pip are to be changed:

$ sudo apt-get install python-dev python-pip3 libfreetype6-dev libjpeg-dev build-essential
$ sudo -H pip3 install --upgrade pip
[ $ sudo apt-get purge python-pip3 ] (removes pip3, see below)
$ sudo -H pip3 install --upgrade luma.oled

Additionally, purge in line 3 just removed my pip3 which is required in line 4.

[gnbl]

@rm-hull If you wanted to improve the speed for this display controller, consider to optimize the bit-packing (two pixels / greyscale nibbles per byte). This seems to be quite slow in Python. Outsourcing this loop to a compiled Cython module speeds this up significantly.

Increasing SPI driver buffer size and patching py-spidev accordingly does probably not gain very much, although it would allow writing the whole display / RAM in one transfer (8 kiB / 32 kiB).

However, both of these are probably a bit involved for the end user.

[gnbl]

Thanks for the feedback, this was not meant as a complaint. I’m happy it worked on the first attempt.