The repository includes lectures and exercises of the course TESR (DHDK), held by Marilena Daquino. All materials are available in the public domain.
You'll find all the information you need in the slides of the first class
In the slides you will find plenty of references to continue studying the course topics. Here below are some extra references, in case you haven't mastered yet your google search skills.
XML, XPath, XSLT
Ray, Erik T. Learning XML: creating self-describing data. " O'Reilly Media, Inc.", 2003.
https://repo.zenk-security.com/Programmation/Learning%20XML.pdf
Tidwell, Doug. XSLT: mastering XML transformations. " O'Reilly Media, Inc.", 2008.
Mark, Lutz. "Learning Python 4th edition." (2009).
https://cfm.ehu.es/ricardo/docs/python/Learning_Python.pdf
Benjamin Bengfort, Tony Ojeda, Rebecca Bilbro-Applied Text Analysis with Python_ Enabling Language Aware Data Products with Machine Learning-O’Reilly Media (2017)
Antoniou, G. et al. (2012). A semantic web primer. MIT press.