Bug: normal usage of route handler decorators causes deprecation warnings

[bunny-therapist]

Description

Using any of the route handler decorators get, post, etc now causes the warning "Semantic HTTP route handler classes are deprecated and will be replaced by functional decorators in Litestar 3.0.

I was told here that this is not intended behavior and I should create this issue.

URL to code causing the issue

litestar/litestar/handlers/http_handlers/decorators.py

Line 49 in 84f51c8

class _SubclassWarningMixin:

MCVE

# Run this file with pytest

from litestar import Litestar, get


@get()
async def root_handler() -> None: ...


app = Litestar(route_handlers=[root_handler])


def test_nothing():
    ...

Steps to reproduce

1. Install litestar 2.9.0
2. Put the MCVE in a file
3. Run pytest on that file
4. Deprecation warnings appear in the output.

Screenshots

"![SCREENSHOT_DESCRIPTION](SCREENSHOT_LINK.png)"

Logs

No response

Litestar Version

2.9.0

Platform

• Linux
• Mac
• Windows
• Other (Please specify in the description above)

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[github-actions]

This issue has been closed in #3569. The change will be included in the upcoming patch release.

[github-actions]

A fix for this issue has been released in v2.14.0