Merge pull request matplotlib#29873 from AdarshDec/bugfix/29860-handle-nan-inf

Handled non finite values in ax.pie - issue matplotlib#29860

Author: dstansby

lib/matplotlib/axes/_axes.py

@@ -3303,6 +3303,9 @@ def pie(self, x, explode=None, labels=None, colors=None,
         if np.any(x < 0):
             raise ValueError("Wedge sizes 'x' must be non negative values")
 
+        if not np.all(np.isfinite(x)):
+            raise ValueError('Wedge sizes must be finite numbers')
+
         sx = x.sum()
 
         if normalize:

lib/matplotlib/tests/test_axes.py

@@ -9731,3 +9731,11 @@ def test_bar_shape_mismatch():
     )
     with pytest.raises(ValueError, match=error_message):
         plt.bar(x, height)
+
+
+def test_pie_non_finite_values():
+    fig, ax = plt.subplots()
+    df = [5, float('nan'), float('inf')]
+
+    with pytest.raises(ValueError, match='Wedge sizes must be finite numbers'):
+        ax.pie(df, labels=['A', 'B', 'C'])