bug: envvar not working for typer.Options with typer==0.26.0

[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[str, typer.Argument(envvar="ME")]):
    print(f"Hello {user}")


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


if __name__ == "__main__":
    app()

Description

The envvar option is not respected for typer.Option. It is respected for typer.Argument. For the above code snippert, with typer==0.26.0, I get

❯ python tmp.py arg foo
Hello foo
❯ ME=bar python tmp.py arg
Hello bar
❯ python tmp.py opt --user foo
Hello foo
❯ ME=bar python tmp.py opt
Usage: tmp.py opt [OPTIONS]
....

With typer<0.26.0, the last one works as expected printing Hello bar.

Operating System

macOS

Operating System Details

No response

Project Version

0.26.0

Python Version

3.14

Additional Context

No response

[svlandeg]

Thanks for the report, we'll look into this ASAP.

[svlandeg]

Issue to track this: #1787

[svlandeg]

PR to fix this: #1788

[svlandeg]

Fixed in 0.26.1. Thanks again! 🙏