misc: Replace ruff I rules with more specific isort rules

Author: JDBetteridge

.github/workflows/lint.yml

@@ -27,12 +27,16 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8-pyproject ruff
+        pip install flake8-pyproject isort ruff
 
     - name: Lint codebase with flake8
       run: |
         flake8 --builtins=ArgumentError .
 
+    - name: Lint the Python imports with isort
+      run: |
+        isort --check-only .
+
     - name: Lint codebase with ruff
       run: |
         ruff check --preview --output-format github

pyproject.toml

@@ -74,12 +74,15 @@ line-length = 90
 
 [tool.ruff.lint]
 # Add the following rule sets
-extend-select = ["E", "W", "F", "B", "UP", "SIM", "I"]
+select = ["E", "W", "F", "B", "UP", "SIM", "RUF022"]
 # But ignore these inconvenient rules
 ignore = ["F403", "E226", "E731", "E275", "F405", "E722", "E741", "W605"]
 
-[tool.ruff.lint.isort]
-known-first-party = ["devito", "examples"]
+[tool.isort]
+line_length = 90
+known_first_party = ["devito", "examples"]
+multi_line_output = "VERTICAL_GRID_GROUPED"
+force_alphabetical_sort_within_sections = true
 
 [tool.flake8]
 max-line-length = 90