💥 Make typer-slim a shallow wrapper around typer, always requiring rich and shellingham

[svlandeg]

From a recent survey we've run on Typer, we've learned that less than 5% of users specifically use typer-slim. We had originally introduced this package to provide users the option to not install shellingham & rich. However, even with these two packages, the typer library is still pretty small (25Mb) and the code base is more complex by having to cater for custom logic whether or not Rich is present or not. Additionally, we've run into issues (#1503) with publishing typer and typer-slim from the same codebase, so we can't keep the current situation. All of this has resulted in the conclusion to drop support for typer-slim. It will just be a shallow wrapper around typer.

We are aware that some users do not prefer some of the Rich formatting, and we'll look into options of customizing this further in the future. For now, there is always the option of setting Typer(rich_markup_mode=None) for each app, or setting a global environment variable TYPER_USE_RICH to False to disable any Rich formatting.

I've built the wheel locally (with TIANGOLO_BUILD_PACKAGE="typer-slim") and installed it in a clean venv, and got:

$ pip list
Package           Version
----------------- -------
click             8.3.1
colorama          0.4.6
markdown-it-py    4.0.0
mdurl             0.1.2
pip               25.2
Pygments          2.19.2
rich              14.3.2
shellingham       1.5.4
typer             0.21.1
typer-slim        0.21.1
typing_extensions 4.15.0

WIP

• Document new env var
• Fix redistribute tests

[svlandeg]

TODO: update version here right before merging/releasing.

[github-actions]

📝 Docs preview

Last commit 28ef804 at: https://dc499b86.typertiangolo.pages.dev

Modified Pages

• https://dc499b86.typertiangolo.pages.dev/ - (before)
• https://dc499b86.typertiangolo.pages.dev/features/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/commands/help/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/exceptions/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/install/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/options-autocompletion/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/options/help/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/package/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/printing/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/progressbar/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/prompt/ - (before)
• https://dc499b86.typertiangolo.pages.dev/tutorial/typer-command/ - (before)

[svlandeg]

I wanted to rename this one to USE_RICH instead of HAS_RICH but that causes errors in the redistribution tests as they'd use an old pip-installed typer.