当我使用scikit-optimize版本0.7.4来优化scikit-learn版本0.23的模型时：

    rf = BayesSearchCV(        RandomForestClassifier(            min_samples_leaf=0.01, oob_score=True        ), {            'n_estimators': Integer(30, 200),            'max_depth': Integer(10, 150),            'min_samples_split': Real(0.05, 0.3),        }, n_iter=32    )

当我运行rf.fit时，它显示：

  File "C:\Users\cloudy\PyCharmProjects\clixove\venv\lib\site-packages\skopt\space\space.py", line 764, in rvs    if sp_version < (0, 16):TypeError: '<' not supported between instances of 'Version' and 'tuple'

但是当我仅使用RandomForestClassifier并进行拟合时，这个错误不会出现。那么，如何避免这个问题呢？谢谢！

完整的错误跟踪如下：

Traceback (most recent call last):  File "C:/Users/cloudy/PyCharmProjects/clixove/BasicML/classifier.py", line 106, in <module>    rf.fit(clf.data['X_train'], clf.data['Y_train'])  File "C:\Users\cloudy\PyCharmProjects\clixove\venv\lib\site-packages\skopt\searchcv.py", line 678, in fit    optim_result = self._step(  File "C:\Users\cloudy\PyCharmProjects\clixove\venv\lib\site-packages\skopt\searchcv.py", line 552, in _step    params = optimizer.ask(n_points=n_points)  File "C:\Users\cloudy\PyCharmProjects\clixove\venv\lib\site-packages\skopt\optimizer\optimizer.py", line 360, in ask    x = opt.ask()  File "C:\Users\cloudy\PyCharmProjects\clixove\venv\lib\site-packages\skopt\optimizer\optimizer.py", line 332, in ask    return self._ask()  File "C:\Users\cloudy\PyCharmProjects\clixove\venv\lib\site-packages\skopt\optimizer\optimizer.py", line 398, in _ask    return self.space.rvs(random_state=self.rng)[0]  File "C:\Users\cloudy\PyCharmProjects\clixove\venv\lib\site-packages\skopt\space\space.py", line 764, in rvs    if sp_version < (0, 16):TypeError: '<' not supported between instances of 'Version' and 'tuple'

回答：

scikit-learn版本0.23及以上版本的问题已在0.8.1版本中修复

以下是PIP安装命令：

pip install scikit-optimize==0.8.1

参考：scikit-optimize 0.8.1