UP929312

Improved docs and optimised

2

### Describe your change: * [ ] Add an algorithm? * [x] Fix a bug or typo in an existing algorithm? * [x] Documentation change? ### Checklist: * [x] I...

## What do these changes do? Add in missing requirement, fix link that's different for no reason. These changes fix the missing requirement for frozenlist in the file, as well...

Massive cleanup, using modern python

1

context managers, tuple unpacking, enumerate all should be used.

This pull request uses context managers to cleanup the outdated open, read/write, close and should be used instead. It also forces a flush, so that is also not needed.