Pynaf provides a simple API for creating or reading NAF documents.
The NAF (Natural language Annotation Format) is an XML markup language that contains several layers of linguistic annotation. It is used in Natural Language Processing tools like [IXA Pipes] (http://ixa2.si.ehu.es/ixa-pipes/) or Corefgraph.
More information about NAF in the following link .
Install pinaf directly from Pypi repositories
Pip install pynaf
Install pynaf using this command (no need to clone the repository):
pip install --upgrade --user git+https://github.com/josubg/pynaf.git