- Fixed the installation of ruamel.yaml if not already present.
- Limit the ruamel.yaml version to less than 0.18.0, because newer versions are completely changed so will need more work to fix. Note that if you already have a newer version of ruamel.yaml in the python that you are using, it is advised to run the following command to remove it, after which running this script will reinstall a working version:
/path/to/your/python -m pip uninstall ruamel.yaml