Typer improperly parsing args from command defined by .callback()

[macintacos]

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Example Code

Minimal code available here: https://github.com/macintacos/repro-typer-improper-args

Description

The issue is self-contained in the README here: https://github.com/macintacos/repro-typer-improper-args. Copy/pasting below.

---

Install Poetry. Clone the repo and run poetry install && poetry shell. Then notice:

• repro new -o okay lol successfully runs:

  $ repro new -o okay lol
  args = ['lol']
  opt = 'okay'

• ...but repro new okay -o lol does not:

  $ repro new okay -o lol
  Usage: repro new [OPTIONS] ARGS... COMMAND [ARGS]...
  Try 'repro new -h' for help.
  ╭─ Error ───────────────────────────────────────────╮
  │ Missing option '-o' / '--opt'.                    │
  ╰───────────────────────────────────────────────────╯

• Notice that the other command, not added as a callback, seems to work okay (the command parameters are identical):

  $ repro actually works lol -o okay
  args = ['lol']
  opt = 'okay'
  
  $ repro actually works -o okay lol
  args = ['lol']
  opt = 'okay'

---

For a number of (kinda uninteresting) reasons, I currently have a CLI tool built with the pattern shown in repro/main.py and repo/new.py.

Can someone confirm that this is a bug? Arguments and Options seem to be improperly being parsed when I do this - when I print things out, it seems like everything is going into the list[str], including the -o option and the option's argument as well.

Operating System

macOS

Operating System Details

No response

Typer Version

0.9.0

Python Version

Python 3.10.5

Additional Context

No response

[DiegoAz]

I don't know if it has anything to do with it but, if I understood correctly, the documentation about the option names says that you should put the long name first ("--opt", "-o") instead of ("-o", "--opt"). I also think you might want to use raise typer.Exit() and isEager, both explained here

[st3w4r]

I have the same problem. When I use a callback decorator, the flags/options has to come before the argument. It doesn't work if it's after.

Does not work:

$ cli show ARG --json 

Works:

$ cli show --json ARG

This makes the experience of the CLI not very user friendly.