To sum it up, use at least Python 3.8 ... versioned along your code with a unit-test ensuring its consistency (see the test_py2puml.py's test_py2puml_model_on_py2uml_domain example) generated and ...

With it, you can quickly develop cross-platform Python applications ... all major parts of the code, so you can easily understand the basics without having to consult the SDK reference documentation.