Using multiple versions of Python with Navigator¶ With Navigator, you can have different versions of Python on your computer and easily switch between them by keeping them in different environments. To use a different version of Python than the one you are currently using, set up a new environment: Start Navigator. Go to the Environments page. Click Create. Type a descriptive Name for your environment. Select a Python version. Click Create. Navigator creates the new environment and activates it, as shown by the highlighted green bar and green play button. Click the green play button to use various tools within the active environment.