如果是序列化格式的话 ，可以使用 sklearn.externals 的 joblib
from sklearn.externals import joblib#保存训练好的模型 fitted_model
joblib.dump(fitted_model,'./model_name.stp') # 保存在当前路径下，取名为 model_name.stp
# 装载之前保存的路径文件
load_model = joblib.load('./model_name.stp') # 这里 load_model 和 fitted_model是同一个model
stp文件是三维模型设计文件，可以用三维建模软件打开，比如catia软件。具体步骤如下1、打开CATIA设计软件
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2、点击工具栏中的文件标签
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3、在工具栏的文件标签折叠菜单中选择打开命令
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4、在自己的本地硬盘中浏览到需要打开的stp文件进行选择
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5、打开后等待CATIA软件对stp文件进行转码,完成后即可显示文件内的三维零件图形
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proe软件可以打开stp文件，打开的具体操作步骤如下：1、首先我们打开电脑里的proe软件进入软件主界面。
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2、然后我们找到并点击界面左上角的菜单栏里的打开图标，进行打开文件的操作。
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3、然后我们在类型中选择stp，step格式，即可对应直接打开stp格式的文件。我们找到你要打开的文件，选择右下角的打开。
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4、然后此时软件会弹出对话框，我们直接在对话框里选择确定即可。
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5、回到软件主界面我们就会发现此时已经打开了stp文件了。
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