💭 Document how to provide a negative number as an argument · fas...
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!https://github.com/fastapi/typer/discussions/798

Date: October 30, 2024

Document how to provide a negative number as an argument · fastapi typer · Discussion #798
 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 ...
 GitHub · github.com [1]

Today I learned that you cannot pass negative integers as values to typer. in this case `context_settings={"ignore_unknown_options": True}` is required so that the `-` does not look like a flag.

``` python
# script name: main.py

import typer

app = typer.Typer()

@app.command()
def failing(value: float):
 print(f"{value=}")

@app.command(
 context_settings={"ignore_unknown_options": True}
)
def working_good(value: float):
 print(f"{value=}")

if __name__ == "__main__":
 app()
```

!!! note

 This post is a thought [2]. It's a short note that I make
 about someone else's content online #thoughts [3]

References:
[1]: https://github.com/fastapi/typer/discussions/798
[2]: /thoughts/
[3]: /tags/thoughts/