1、dir(sklearn)
import sklearn dir(sklearn) Out[3]: [ ‘base‘, ‘clone‘, ‘config_context‘, ‘exceptions‘, ‘externals‘, ‘get_config‘, ‘logger‘, ‘logging‘, ‘os‘, ‘re‘, ‘set_config‘, ‘setup_module‘, ‘sys‘, ‘utils‘, ‘warnings‘]
原文：https://www.cnblogs.com/bawu/p/8996153.html