Adding Python format checking.

.flake8

@@ -0,0 +1,9 @@
+[flake8]
+ignore = E203, E266, W503, C901, E741, F401
+max-line-length = 100
+max-complexity = 18
+select = B,C,E,F,W,T4,B9
+extend-exclude = build*
+
+per-file-ignores =
+    test/python/*.py: F401, F821

.github/workflows/qa.yaml

@@ -0,0 +1,26 @@
+name: qa
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  check-flake8:
+    name: Python linting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+
+      - name: Install dependencies
+        run: |
+          pip install flake8
+
+      - name: Lint with flake8
+        run: |
+          flake8 . --count --show-source --statistics

OpenSn_Logo_CAD/opensn.py

@@ -14,7 +14,7 @@
     # Append parent directory to locate the pyopensn modules
     sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../../")))
     from pyopensn.mesh import MeshGenerator, FromFileMeshGenerator
-    from pyopensn.xs import CreateSimpleOneGroup
+    from pyopensn.xs import MultiGroupXS, CreateSimpleOneGroup
     from pyopensn.source import VolumetricSource
     from pyopensn.aquad import GLCProductQuadrature3DXYZ
     from pyopensn.solver import DiscreteOrdinatesSolver, SteadyStateSolver
@@ -58,8 +58,8 @@
             }
         ],
         xs_map=[
-            { "block_ids": [0], "xs": xs_source },
-            { "block_ids": [1], "xs": xs_block },
+            {"block_ids": [0], "xs": xs_source},
+            {"block_ids": [1], "xs": xs_block},
         ],
         options={
             "scattering_order": 0,