matplotlib.pyplot画图报QT错误

1、卸载了python2.7,安装了Anaconda3,用python画图时,竟然报Qt错误

按照别人的说法是Anaconda的问题,更新qt  
conda install qt  
或者  
conda update pyqt  
但是仍然无济于事  
查看官方matplotlib 安装尝试更新matplotlib   
python -m pip install -U pip             更新pip
python -m pip install -U matplotlib      更新matplotlib  

测试:

#coding:utf-8
import matplotlib.pyplot as plt
labels='apple','banana','orange','pear'
sizes=20,10,30,40
colors='yellowgreen','gold','lightskyblue','lightcoral'
#banana和其它有间隙
explode=0,0.1,0,0
plt.pie(sizes,explode=explode,labels=labels,colors=colors,autopct='%.1f%%',shadow=True,startangle=50)
#轴对称,圆
plt.axis('equal')
plt.show()

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转载自blog.csdn.net/hqh131360239/article/details/79719066