从0开始学习python10：python3霍兰德分析AttributeError: 'Line2D' object has no property 'frac'报错

今天在写霍兰德分析的代码是，出现了报错：

AttributeError: 'Line2D' object has no property 'frac'

找了一会资料，才知道原来自己用的是最新的matplotlib库，而最新的matplotlib库是不需要加上frac的，所以直接去掉 frac = 1.2 即可。
附上去掉后的正确代码：

#radar map
import numpy as np
import matplotlib.pyplot as plt
import matplotlib
matplotlib.rcParams['font.family']='SimHei'
matplotlib.rcParams['font.sans-serif'] = ['SimHei']
radar_labels = np.array(['研究型（I）','艺术型（A）','社会型（S）',\
                         '企业型（E）','常规型（C）','现实型（R）'])
nAttr = 6
data = np.array([[0.40,0.32,0.35,0.30,0.30,0.88],
                 [0.85,0.35,0.30,0.40,0.40,0.30],
                 [0.43,0.89,0.30,0.28,0.22,0.20],
                 [0.30,0.25,0.48,0.85,0.45,0.40],
                 [0.20,0.38,0.87,0.45,0.32,0.28],
                 [0.4,0.31,0.38,0.40,0.92,0.28]])
data_labels=("工程师","实验员","艺术家","推销员","社会工作者","记事员")
angles = np.linspace(0,2*np.pi,nAttr,endpoint=False)
fig = plt.figure(facecolor="white")
plt.subplot(111,polar=True)
plt.plot(angles,data,'bo',color = 'gray',linewidth=1,alpha=0.2)
plt.plot(angles,data,'o-',linewidth=1.5,alpha=0.2)

plt.fill(angles,data,alpha=0.25)
plt.thetagrids(angles*180/np.pi,radar_labels)
plt.figtext(0.52,0.95,'霍兰德人格分析',ha='center',size=20)
legend=plt.legend(data_labels,loc=(0.94,0.80),labelspacing=0.1)
plt.grid(True)
plt.savefig('holland_radar.JPG')
plt.show()

效果图：