• Description: When using matplotlib.pyplot.pie() with a list that includes a NaN, the function raises a ValueError. This crash is not currently caught or documented.

import matplotlib.pyplot as plt
import numpy as np

fig, ax = plt.subplots()
data = [10, 20, float('nan'), 40]
ax.pie(data, labels=["A", "B", "C", "D"])
plt.show()

• Error Message
  ValueError: cannot convert float NaN to integer

• Expected Behavior - matplotlib.pie() should either: Filter outNaNs, or raise a clear and user-friendly ValueError

• Environment:

  • Python: 3.11

  • Matplotlib: 3.8.x

  • OS: Windows 10

  • Found via: Fuzz testing

[@tacaswell edited to fix markdown markup]