What does DeprecationWarning mean when running Python
问题 I ran a Python program and got a DeprecationWarning , like: D:\programs\anaconda2\lib\site-packages\sklearn\utils\deprecation.py:70: DeprecationWarning: Function log_multivariate_normal_density is deprecated; The function log_multivariate_normal_density is deprecated in 0.18 and will be removed in 0.20. warnings.warn(msg, category=DeprecationWarning) I can't confirm what is wrong about it. What is a DeprecationWarning ? 回答1: In general developers are developing libraries and in developing