lint: reintroduce pylint in tox (#4073)

tox.ini

@@ -10,10 +10,11 @@
 # * Include isort
 # * Do not use tmpfs for a temporary directory as it does not support user xattrs
 # * Legacy tests (inherited from integration tests) include coverage
+# * Pylint included
 
 [tox]
 env_list =  # Environments to run when called with no parameters.
-    lint-{black,ruff,isort,mypy,pyright,shellcheck,codespell,yaml}
+    lint-{black,ruff,isort,mypy,pylint,pyright,shellcheck,codespell,yaml}
     test-py38
     test-legacy-py38
 minversion = 3.8
@@ -117,6 +118,19 @@ commands =
     codespell: codespell --toml {tox_root}/pyproject.toml {posargs}
     yaml: yamllint {posargs} .
 
+[testenv:lint-pylint]
+description = Lint with pylint
+base = testenv
+labels = lint
+deps = -r{tox_root}/requirements-devel.txt
+package = editable
+# This runs all commands even if the first fails.
+# Not to be confused with ignore_outcome, which turns errors into warnings.
+ignore_errors = true
+commands =
+    pylint -j 0 snapcraft
+    pylint -j 0 tests --disable=invalid-name,missing-module-docstring,missing-function-docstring,duplicate-code,protected-access,unspecified-encoding,too-many-public-methods,too-many-arguments,too-many-lines,redefined-outer-name
+
 [testenv:lint-{mypy,pyright}]
 description = Static type checking
 base = testenv