如何用Python语言修复我的雷达图中的FixedLocator问题？

import matplotlib.pyplot as plt
import numpy as np

categories = ['A', 'B', 'C', 'D', 'E']
data = [4, 3, 2, 5, 1]

fig = plt.figure(figsize=(6, 6))
ax = plt.subplot(111, polar=True)
angles = np.linspace(0, 2 * np.pi, len(categories), endpoint=False).tolist()
angles += angles[:1]

data += data[:1]

ax.plot(angles, data, linewidth=1, linestyle='solid')
ax.fill(angles, data, 'b', alpha=0.1)

ax.set_xticks(angles[:-1])
ax.set_xticklabels(categories)

plt.title('Radar Chart')
plt.xlabel('Categories')
plt.ylabel('Data')

plt.show()