jessemyers-lettuce 40731ed52d
python: several typing and style improvements (#16378)
* python: several typing and style improvements

The generated (python) code fails with several standard validation tools,
including `flake8`, `mypy`, and `autoflake`. While fixing every possible
violation -- especially wrto typing -- woudl be a project, some of the
changes are fairly easy.

 - The `autoflake` tool picks up on unused imports. These can just be removed.

 - The `mypy` tool picks up on numerious typing violations, especially if set
   to its strictest mode. As a starting point, all functions ought to annotate
   a return type, including constructors, even if the return type is `None`
   because otherwise the functions are omitted from type checking and it's
   impossible to make incremental progress towards adding types.

 - The `flake8` tool mostly finds whitespace and line-length issues; while
   line-length standards very, the source already includes several flake8
   ignores, so it seems safe to add a few more.

* Add generated files

* Restore imports used by `AbstractPythonCodegen.java`

* Update generated files
2023-09-02 01:03:02 +08:00
..