Subject: Re: [PATCH] selftests: tc-testing: fix list_categories() crash on list type

From: Jakub Kicinski <[email-masked]>
Date: Tue, 3 Mar 2026 18:17:00 -0800

On Sat, 28 Feb 2026 13:17:35 +0530 [email-masked] wrote:
> list_categories() builds a set directly from the 'category'
> field of each test case. Since 'category' is a list,
> set(map(...)) attempts to insert lists into a set, which
> raises:
> 
>   TypeError: unhashable type: 'list'
> 
> Flatten category lists and collect unique category names
> using set.update() instead.

How did you find this issue?

I can't figure out what's calling this function in the first place.
-- 
pw-bot: cr