Rule selector precedence

Categories (e.g. correctness, suspicious), linter groups (e.g. RUF, UP), linter prefixes (e.g. RUF1), and rules (e.g. F401, unused-import) can be combined in the same configuration. In general, more specific selectors take precedence over broader selectors. Although all categories aren't strictly "broader" than all linter groups, the general trend still applies. When selectors have the same specificity, ignore takes precedence over select. In short, the current precedence relationship is:

ALL < category < linter group < linter prefix < rule

Categories and linter groups can be combined

Select all F (unused-import) and restriction (assert) rules.

[lint]
preview = true
select = ["F", "restriction"]

import os  # error: [unused-import]
assert True  # error: [assert]

Categories take precedence over ALL

unused-import (F401) is a suspicious rule:

[lint]
preview = true
select = ["suspicious"]
ignore = ["ALL"]

import os  # error: [unused-import]

Linter group selection takes precedence over category ignores

[lint]
preview = true
select = ["F"]
ignore = ["suspicious"]

import os  # error: [unused-import]

Linter group ignores take precedence over category selectors

[lint]
preview = true
select = ["suspicious"]
ignore = ["F"]

import os

Linter prefixes take precedence over categories

[lint]
preview = true
select = ["F4"]
ignore = ["suspicious"]

import os  # error: [unused-import]

Rule codes take precedence over categories

[lint]
preview = true
select = ["F401"]
ignore = ["suspicious"]

import os  # error: [unused-import]

Rule names take precedence over categories

[lint]
preview = true
select = ["unused-import"]
ignore = ["suspicious"]

import os  # error: [unused-import]