I wrote it as part of some experiment that I did a few weeks ago. I discovered that there was no client library to query a Munin server. There's PyMunin or python-munin which helped with the development of Munin plugins, but nothing to access the munin-node and retrieve its data.
So I decided to write a quick and simple one, and it's released under the
name of PyMuninCli,
providing the munin.client Python module.