STY: tweak unpacking in polar test a bit

tacaswell · tacaswell · commit 9ee9f3ef67b1 · 2021-09-19T19:51:36.000-04:00
diff --git a/lib/matplotlib/tests/test_pyplot.py b/lib/matplotlib/tests/test_pyplot.py
@@ -314,9 +314,9 @@ def test_subplot_change_projection():
 
 def test_polar_second_call():
     # the first call creates the axes with polar projection
-    h1 = plt.polar(0., 1., 'ro')
-    assert isinstance(h1[0], mpl.lines.Line2D)
+    ln1, = plt.polar(0., 1., 'ro')
+    assert isinstance(ln1, mpl.lines.Line2D)
     # the second call should reuse the existing axes
-    h2 = plt.polar(1.57, .5, 'bo')
-    assert isinstance(h2[0], mpl.lines.Line2D)
-    assert h1[0].axes is h2[0].axes
+    ln2, = plt.polar(1.57, .5, 'bo')
+    assert isinstance(ln2, mpl.lines.Line2D)
+    assert ln1.axes is ln2.axes
