pythonocc-step-editor/step_editor/__init__.py

from __future__ import annotations

__all__ = ["StepEditorWindow", "StepModel", "main"]


def __getattr__(name: str):
    if name == "StepModel":
        from .model import StepModel

        return StepModel
    if name in {"StepEditorWindow", "main"}:
        from .app import StepEditorWindow, main

        return {"StepEditorWindow": StepEditorWindow, "main": main}[name]
    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")