lojbantools is a Python library that most notably wraps camxes, a lojban parser generated by Rats! as a java jarfile. It also wraps vlatai from the jbofihe package, which does morphological analysis of lojban words. The third thing it wraps is makfa, which is a word lookup tool.
Since camxes is a java file, you need a Java virtual machine or something else that lets you run jarfiles. In addition to that, you also need the jbofihe package to get vlatai for morphological analysis and makfa for selma'o lookup (and more in the future).