MNT: Clean up some unused return values

src/metpy/plots/_mpl.py

@@ -186,7 +186,7 @@ def draw(self, renderer):
             posy = self.convert_yunits(self.y)
             pts = np.vstack((posx, posy)).T
             pts = trans.transform(pts)
-            canvasw, canvash = renderer.get_canvas_width_height()
+            _, canvash = renderer.get_canvas_width_height()
 
             gc = renderer.new_gc()
             gc.set_foreground(self.get_color())
@@ -203,7 +203,7 @@ def draw(self, renderer):
                     continue
 
                 self._text = t  # hack to allow self._get_layout to work
-                bbox, info, descent = self._get_layout(renderer)
+                _, info, _ = self._get_layout(renderer)
                 self._text = ''
 
                 for line, _, x, y in info:

tests/calc/test_indices.py

@@ -138,8 +138,7 @@ def test_weighted_continuous_average_temperature():
                                      data['temperature'],
                                      height=data['height'],
                                      depth=6000 * units('meter'))
-    # Commenting out since it won't run until the above can run without error
-    # assert_almost_equal(t, 279.3275828240889 * units('kelvin'), 7)
+    assert_almost_equal(t, 279.3275828240889 * units('kelvin'), 7)
 
 
 def test_weighted_continuous_average_elevated():

tools/nexrad_msgs/parse_spec.py

@@ -63,7 +63,8 @@ def process_msg18(fname):
                 if len(parts) == 8:
                     parts = parts[:6] + [parts[6] + parts[7]]
 
-                var_name, desc, typ, units, rng, prec, byte_range = parts
+                # var_name, desc, typ, units, rng, prec, byte_range
+                var_name, desc, typ, units, _, _, byte_range = parts
                 start, end = map(int, byte_range.split('-'))
                 size = end - start + 1
                 assert size >= 4