The script jupyter-contrib.exe is installed in 'C:\Users\lenovo\AppData\Roaming\Python\Python310\Scripts' which is not on PATH.

根据您提供的引用内容，您遇到的问题是"The script jupyter-contrib.exe is installed in 'C:\Users\lenovo\AppData\Roaming\Python\Python310\Scripts' which is not on PATH."。该问题出现的原因是脚本安装的路径不在系统的PATH环境变量中。解决该问题的方法有两种。

第一种方法是将脚本所在的路径添加到系统的PATH环境变量中。您可以按照以下步骤进行操作：在Windows系统中，点击开始菜单，搜索并打开"系统变量"。然后，在系统变量对话框中，找到名为"Path"的变量，双击打开它。接下来，点击"新建"按钮，将脚本所在的路径'C:\Users\lenovo\AppData\Roaming\Python\Python310\Scripts'添加到变量值中。最后，点击"确定"保存更改。这样就将脚本的路径添加到了系统的PATH环境变量中。

第二种方法是使用"--no-warn-script-location"选项来禁止警告。您可以在安装jupyterlab时使用该选项，如下所示：在命令行中运行"pip install --user jupyterlab --no-warn-script-location"。这样就可以在安装过程中禁止警告。

希望以上方法可以解决您遇到的问题。如果还有其他疑问，请随时提问。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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