Python 绘制饼图时同时在每一块上显示数值和占比_python plot饼图显示每块个数

import matplotlib.pyplot as plt

# make the pie circular by setting the aspect ratio to 1
# plt.figure(figsize=plt.figaspect(1))
values = [3, 12, 5, 8] 
labels = ['a', 'b', 'c', 'd'] 

def make_autopct(values):
    def my_autopct(pct):
        total = sum(values)
        val = int(round(pct*total/100.0))
        # 同时显示数值和占比的饼图
        return '{p:.2f}%  ({v:d})'.format(p=pct,v=val)
    return my_autopct

plt.pie(values, labels=labels, autopct=make_autopct(values))
plt.show()
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