default-typer-command.py

#!/usr/bin/env python3

# How to get Typer to behave like it has a default command.
# source: https://github.com/tiangolo/typer/issues/18#issuecomment-617089716

import typer

app = typer.Typer()


@app.command()
def foo(x: str):
    print("message:" + x)


@app.command()
def bar(i: int):
    print(i + 2)


@app.callback(invoke_without_command=True)
def pas(ctx: typer.Context):
    if ctx.invoked_subcommand is None:
        print("this is the callback")


if __name__ == "__main__":
    app()