报错信息为:
DeprecationWarning: This module was deprecated in version 0.18 in favor of the model_selection module into which all the refactored classes and functions are moved. Also note that the interface of the new CV iterators are different from that of this module. This module will be removed in 0.20.
解决方法:
from sklearn.cross_validation import train_test_split
替换为
from sklearn.model_selection import train_test_split