no_args_is_help flag broken?

[timyig]

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Example Code

# This is from the typer docs
# https://typer.tiangolo.com/tutorial/commands/?h=no_args_is_help#a-cli-application-with-multiple-commands
# main.py
import typer

app = typer.Typer(no_args_is_help=True)


@app.command()
def create():
    print("Creating user: Hiro Hamada")


@app.command()
def delete():
    print("Deleting user: Hiro Hamada")


if __name__ == "__main__":
    app()

Description

running:
poetry run python3 main.py
I get this output:

`
poetry run python3 main.py

Usage: main.py [OPTIONS] COMMAND [ARGS]...

╭─ Options ────────╮
│ --install-completion Install completion for the current shell. │
│ --show-completion Show completion for the current shell, to copy it or customize the installation. │
│ --help Show this message and exit. │
╰─────────────╯
╭─ Commands ────╮
│ create │
│ delete │
╰───────────╯
Usage: main.py [OPTIONS] COMMAND [ARGS]...
Try 'main.py --help' for help.
╭─ Error ──╮
│ │
╰──────╯
`

Problem

Why is there the Error Lable/Box?
If I provider the --help option the the behavior is as expected.
Also invoking the sub-commands behave as expected

Operating System

Linux

Operating System Details

Ubuntu 24

Typer Version

python -c "import typer; print(typer.version)" - > 0.16.0

Python Version

poetry run python3 --version -> Python 3.12.2

Additional Context

from my pyproject toml:

dependencies = [
"pydantic (>=2.11.7,<3.0.0)",
"typer (>=0.16.0,<0.17.0)",
]

[ElliottKasoar]

This seems to have been a bug introduced when compatibility with click=8.2.0 was added. There's a PR to fix it, though I'm not sure what the timeline is for approval: #1240.

An temporary solution is to downgrade to click<8.2.0.

[timyig]

Thank you for pointing out the issue.

[svlandeg]

Thanks for the report! This has been fixed by PR #1278 and released as Typer v.0.16.1.
As @ElliottKasoar mentioned, the issue happened when using Click 8.2.0 or higher.