MuJoCo installation

I hope you read the previous information box. MuJoCo is one odd library that we will encounter in this book because, unlike other libraries and software we use as part of this book, MuJoCo requires a license to use. The Python interface for MuJoCo, available in the Gym library, is compatible only with MuJoCo version 1.31 as of the time this chapter was written, even though the latest available MuJoCo version is higher (1.50 at the time of writing this chapter). Follow these two steps to set up MuJoCo for use with OpenAI Gym environments:

1. Download MuJoCo 1.31 for your platform (Linux/macOS) from this URL: https://www.roboti.us/index.html
2. Obtain a MuJoCo Pro license from this URL: https://www.roboti.us/license.html