bug: envvar not working with list like typer.Option with typer==0.26.1

[wpk-nist-gov]

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Example Code

from typing import Annotated

import typer

app = typer.Typer()


@app.command("arg")
def from_argument(user: Annotated[list[str], typer.Argument(envvar="ME")]):
    print(f"Hello {user}")


@app.command("opt")
def from_option(user: Annotated[list[str], typer.Option(envvar="ME")]):
    print(f"Hello {user}")


if __name__ == "__main__":
    app()

Description

Related to #1787. Using typer.Option of a list (i.e, multiple values allowed) does not respect envvar. Running the code snippet above:

❯ python tmp.py arg a b
Hello ['a', 'b']

❯ ME="a b" python tmp.py arg
Hello ['a', 'b']

❯ python tmp.py opt --user a --user b
Hello ['a', 'b']

❯ ME='a b' python tmp.py opt
Usage: tmp.py opt [OPTIONS]
Try 'tmp.py opt --help' for help.
...

The last command works with typer<0.26.0. Thanks for your quick help with #1786. I'm hopeing this will also be an easy fix.

I wasn't sure if I should make a new thread or tag onto #1786. Sorry if I chose wrong.

Operating System

macOS

Operating System Details

No response

Project Version

0.26.1

Python Version

No response

Additional Context

No response

[svlandeg]

Thanks for the report! Opening a new one is easier so good choice. I think I actually noticed this when I was working on your previous report, so I'm pretty sure where to locate this & how to fix it.

[wpk-nist-gov]

Awesome! Thanks so much!

[svlandeg]

PR: #1791