`# fmt: skip` is not being respected with one-liner functions

[polirritmico]

Describe the bug

Hi, # fmt: skip doesn't skip the formatting in this code:

def foo(): return "mock"  # fmt: skip

$ black foo.py; cat foo.py

Output:

def foo():
    return "mock"  # fmt: skip

Similar case in the playground.

Expected behavior

From the docs I understand that Black should not reformat lines that contain # fmt: skip (The basics -> Usage -> Ignoring sections).

Environment

• Black's version: 24.10.0 (compiled: yes), 24.10.1.dev22+g6000d37 (compiled: no)
• OS and Python version: Gentoo Linux 2.17, Python 3.12.8

Thanks!

[FARDEEN-785]

Hey

I tried to run the code
The output:

def foo():
return "mock" # fmt: skip

Its seems that the #fmt: skip is not behaving as expected
Its the bug in Black ,is there anything to resolve this bug
Is there anything to fix this bug

Thanks
Fardeen khan

[saksham-sak]

nstead of applying # fmt: skip at the end of a single line, apply it above the function definition as part of a block comment:

fmt: off

def foo(): return "mock"

fmt: on

This explicitly disables Black formatting for the entire block, ensuring that the function remains on one line.

[polirritmico]

@saksham-sak, this issue is about # fmt: skip not respecting the documented behaviour.

[JelleZijlstra]

@saksham-sak you appear to be posting LLM-generated responses to a number of issues. It's not useful; please stop.