python中FutureWarning问题解决方法

np.array([0,1,2]) == None

出现：

FutureWarning: comparison to `None` will result in an elementwise object comparison in the future

解决方法：将 == 改为 is 

Also, have you tried is None instead of == None? AFAIK, is can not be overwritten, so numpy.array could not define an element-wise is operation.

http://stackoverflow.com/questions/33954216/comparison-to-none-will-result-in-an-elementwise-object