A simple __main__.py file to turn any folder into an autodiscovering typer app composer

__main__.py

from pathlib import Path
import importlib
import typer

app = typer.Typer(
    no_args_is_help=True
)

parent_dir = Path(__file__).parent
for file in parent_dir.glob("*.py"):
    if file.name.startswith("_") or file.name == Path(__file__).name:
        continue

    name = f"{parent_dir.stem}.{file.stem}"
    mod = importlib.import_module(name)

    sub = getattr(mod, "app", None)
    if sub is not None:
        app.add_typer(sub, name=file.stem)

app()