Over on the https://github.com/mitre/cti repository there is a Usage.md file that has information on "Accessing ATT&CK data in python". This section should be brought over to this repository's documentation since this is the official way that we recommend people should be accessing the STIX data.

The data in the USAGE.md file should be considered a starting point, and not necessarily just something to cut and paste over here, but can still be an educational resource for how we tackle parsing the data ourselves.