May 6, 2025 · May 6, 2025 · May 6, 2025 · May 6, 2025 · May 6, 2025 · May 6, 2025
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py

        sx = x.sum()

        if sx == 0:
            raise ValueError('All wedge sizes are zero')

        if normalize:
            x = x / sx
        elif sx > 1:
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py

    with pytest.raises(ValueError, match='Wedge sizes must be finite numbers'):
        ax.pie(df, labels=['A', 'B', 'C'])


 def test_pie_all_zeros():
    fig, ax = plt.subplots()
    with pytest.raises(ValueError, match="All wedge sizes are zero"):
        ax.pie([0, 0], labels=["A", "B"])
Original file line number	Diff line number	Diff line change
Expand Up		@@ -3308,6 +3308,9 @@ def pie(self, x, explode=None, labels=None, colors=None,

		sx = x.sum()

		if sx == 0:
		raise ValueError('All wedge sizes are zero')

		if normalize:
		x = x / sx
		elif sx > 1:
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -9747,3 +9747,9 @@ def test_pie_non_finite_values():

		with pytest.raises(ValueError, match='Wedge sizes must be finite numbers'):
		ax.pie(df, labels=['A', 'B', 'C'])


		def test_pie_all_zeros():
		fig, ax = plt.subplots()
		with pytest.raises(ValueError, match="All wedge sizes are zero"):
		ax.pie([0, 0], labels=["A", "B"])