Fix linter errors

Author: agriyakhetarpal

matplotlib_pyodide/html5_canvas_backend.py

@@ -291,25 +291,22 @@ def _math_to_rgba(self, s, prop, rgb):
         """Convert math text to an RGBA array using path parser and figure"""
         from io import BytesIO
 
-        # Get the text dimensions
+        # Get the text dimensions and generate a figure
+        # of the right rize.
         width, height, depth, _, _ = self.mathtext_parser.parse(s, dpi=72, prop=prop)
 
-        # Create a figure of the right size
         fig = figure.Figure(figsize=(width / 72, height / 72))
 
         # Add text to the figure
         # Note: depth/height gives us the baseline position
         fig.text(0, depth / height, s, fontproperties=prop, color=rgb)
 
-        # Set up the Agg backend
         backend_agg.FigureCanvasAgg(fig)
 
-        # Render to PNG
-        buf = BytesIO()
+        buf = BytesIO()  # render to PNG
         fig.savefig(buf, dpi=self.dpi, format="png", transparent=True)
         buf.seek(0)
 
-        # Read back the image
         rgba = plt.imread(buf)
         return rgba, depth
 

tests/conftest.py

@@ -19,9 +19,10 @@ def matplotlib_test_decorator(f):
 @pytest.fixture(scope="module")
 def wheel_path(tmp_path_factory):
     # Build a micropip wheel for testing
-    import build
     from build.env import DefaultIsolatedEnv
 
+    import build
+
     output_dir = tmp_path_factory.mktemp("wheel")
 
     with DefaultIsolatedEnv() as env: