You can install schematics-xml either via the Python Package Index (PyPI) or from github.
To install using pip;
$ pip install schematics-xml
$ pip install git+https://github.com/alexhayes/schematics-xml.git
Currently schematics-xml only supports Python 3 - if you’d like feel free to submit a PR adding support for Python 2, however note that I love type annotations and any Python 2 PR will need to include a stub file.