[Bug] One File Per Command

[aytekinar]

First Check

• I added a very descriptive title here.
• I used the GitHub search to find a similar question and didn't find it.
• I searched the Typer documentation, with the integrated search.
• I already searched in Google "How to X in Typer" and didn't find any information.
• I already read and followed all the tutorials in the docs and didn't find an answer.
• I already checked if it is not related to Typer but to Click.

Commit to Help

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Example Code

import typer

child_app = typer.Typer()

@child_app.command()
def child():
    print("Child")

parent_app = typer.Typer()
# parent_app.add_typer(child_app, name="child", help="This is the child app")
parent_app.add_typer(child_app, help="This is the child app")

if __name__ == "__main__":
    parent_app()

Description

Before v0.15.0, we did not have the so-called One File Per Command capability, i.e., grouping of sub commands/typers without a name in a parent typer.

However, this came with a surprise. Now, I cannot get my help printed on parent typers.

Please see the above example code and uncomment the corresponding line and comment-out the following line to see the difference for yourself.

Operating System

Linux

Operating System Details

No response

Typer Version

0.15.1

Python Version

Python 3.11.2

Additional Context

No response

[YuriiMotov]

I don't think this is a bug..
Imagine your child app has more than 1 commands. For which command this help message should be used?

You can specify help message as a docstring of command or as a help parameter of command decorator:

import typer

child_app = typer.Typer()

@child_app.command()
def child():
    """
    child command help message
    """
    print("Child")

parent_app = typer.Typer()

parent_app.add_typer(child_app)

if __name__ == "__main__":
    parent_app()