examples of bit unpacking done elsewhere

[sdtaylor]

In blogs

EarthLab landsat in python lesson 3
Python for Geosciences: Raster bit masks explained (step by step)
http://karthur.org/2021/fast-bitflag-unpacking-python.html

Other packages

https://github.com/haoliangyu/pymasker - last updated 2017. takes only files on disks.
https://github.com/mapbox/rio-l8qa - last updated 2017. landsat 8 only.
https://github.com/ubarsc/python-fmask - python version of fmask, not sure if it will do end user bit unpacking