Run flake8 and isort separately

The old pytest command had issues with relative .. imports and requires flake8 to be pinned to <4.
PyCQA/flake8#1419
tholo/pytest-flake8#81

Pipfile

@@ -16,7 +16,5 @@ flake8 = "*"
 isort = "*"
 pipfile = "*"
 pytest = "*"
-pytest-flake8 = "*"
-pytest-isort = "*"
 python-dotenv = "*"
 sh = "*"

dev-scripts/build-python.py

@@ -57,9 +57,7 @@ def run_command(*args):
 # https://gitlab.com/gozynta/gcloud-tagging-docker/-/blob/master/gitlab-ci-template.yml
 run_command("isort", "-c", source_dir)
 run_command("black", "--check", "--diff", "--color", source_dir)
-
-# Lint source only (Uses pytest-isort and pytest-flake8)
-run_command("pytest", source_dir, "--ignore", test_dir)
+run_command("flake8", source_dir, test_dir)
 
 # Run tests under coverage
 run_command("coverage", "run", f"--source={source_dir}", "-m", "pytest", test_dir)

setup.cfg

@@ -12,8 +12,6 @@ max-line-length = 119
 # so if you add a pytest config section elsewhere,
 # you will need to delete this section from setup.cfg.
 addopts =
-    --isort
-    --flake8
     --cache-clear
 norecursedirs =
     .git