如何在Python中绘制水平条形图的百分比标签？

import matplotlib.pyplot as plt

# 数据
categories = ['A', 'B', 'C', 'D', 'E']
values = [20, 35, 30, 10, 5]

# 绘制水平条形图
plt.barh(categories, values)

# 添加百分比标签
for i, v in enumerate(values):
    plt.text(v + 0.5, i, f'{v/sum(values)*100:.1f}%', va='center')

# 设置图表标题和坐标轴标签
plt.title('Horizontal Bar Chart with Percentage Labels')
plt.xlabel('Percentage')
plt.ylabel('Categories')

# 显示图表
plt.show()