Article in English: Since one of the folders that contains your Python installation folder is most likely hidden, you'll have to unhide it before proceeding:  Open File Explorer. Click the View tab. Check the "Hidden items" box. In some cases, the Python path is "C:\Python27"; however, if you've installed the most recent version of Python using the default settings, it's tucked away in a hidden folder. You can copy the proper file path by doing the following:  Click This PC on the left side of the File Explorer. Double-click your hard drive in the "Devices and drives" section. Scroll down and double-click the "Users" folder. Double-click the folder with your username on it. Scroll down and double-click "AppData". Double-click "Local". Scroll down and double-click "Programs". Double-click the "Python" folder. Double-click the Python folder with your preferred version number (e.g., "Python36"). Click once the address bar at the top of the File Explorer to highlight its contents, then press Ctrl+C to copy the highlighted address. Right-click the Start icon to do so. You should see a pop-up menu appear. You can also press ⊞ Win+X to open the Power User pop-up menu. It's in the pop-up menu. A new window will open. This is a link in the upper-right corner of the window. Doing so opens the System Information window. You'll see this in the upper-left side of the System Information window. Yet another window will pop up. It's in the bottom-right corner of the pop-up window. This window is at the top of the Environment Variables window. You may have to scroll up or down with your mouse cursor hovering over the "User variables" pane to find the "Path" variable. Doing so opens a pop-up window. It's on the right side of the window. A text field will open in the middle of the window. Press Ctrl+V to do so. Your copied path will appear in the text field in the middle of the window. This will save your changes and close the "Path" window, the "Environmental Variables" window, and the "System Properties" window.

Summary in Chinese:
启用查看隐藏文件夹。 找到Python文件夹。 将路径复制到Python文件夹。 打开“超级用户”菜单。 点击系统。 点击系统信息。 点击高级系统设置链接。 点击环境变量…。 在“用户变量”窗格中找到“PATH”标题。 双击“PATH”标题。 点击新建。 粘贴复制的路径。 在三个打开的窗口中点击确定。