Matplotlib

import matplotlib.pyplot as plt
%matplotlib inline

plt.plot(x,y)
plt.xlim(0,5)
plt.title('Title')
plt.xlabel('x axis')
plt.ylabel('y axis')

Interactive 3D image

%matplotlib notebook
fig = plt.figure()
ax = fig.add_subplot(111,projection='3d')
ax.scatter(feat['X1'],feat['X2'],feat['X3'],c=y)