import matplotlib.pyplot as plt
import numpy as np
colors = sns.color_palette('pastel')
plt.pie(data, labels = label_column, colors=colors)
circle = plt.Circle( (0,0), 0.7, color='white') #removing the center part of the pie graph
p=plt.gcf() #get coded figure (line 3 and 4)
p.gca().add_artist(circle) #grab line 5
plt.show()