I consider this library to be stable. Since no new developments happen around the SOAP specification it won't be updated that much. Good PR's which fix bugs are always welcome however. Note that the ...

Note that the latest version to support Python 2.7, 3.3, 3.4 and 3.5 is Zeep 3.4, install via pip install zeep==3.4.0 Zeep uses the lxml library for parsing xml. See ...