Use isort to sort imports automatically

.github/workflows/core.yml

@@ -472,13 +472,17 @@ jobs:
       - uses: actions/checkout@v5
         with:
           ref: ${{ inputs.source_ref }}
+
       - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
+
       - name: Setup flake8 annotations
         uses: rbialon/flake8-annotations@v1
+
       - name: Install linting packages
-        run: pip install flake8 pylint
+        run: pip install flake8 pylint isort
+
       - name: Lint codebase
         run: make lint GITHUB_ACTIONS_FORMATTING=1
 

Makefile

@@ -32,6 +32,8 @@ srclint:
 	@python -m flake8 $(FLAKE8_FORMAT) pyop2/scripts --filename=*
 	@echo "    Linting TSFC"
 	@python -m flake8 $(FLAKE8_FORMAT) tsfc
+	@echo "    Linting imports using isort"
+	@python -m isort . --check --diff
 
 .PHONY: actionlint
 actionlint:

firedrake/__future__.py

@@ -1,6 +1,8 @@
-from firedrake.interpolation import interpolate as interpolate_default, Interpolator as Interpolator_default
 import warnings
 
+from firedrake.interpolation import Interpolator as Interpolator_default
+from firedrake.interpolation import interpolate as interpolate_default
+
 
 def interpolate(expr, V, *args, **kwargs):
     warnings.warn("""The symbolic `interpolate` has been moved into `firedrake`