YANG is a data modeling language for NETCONF (RFC4741), developed
by the IETF NETMOD WG.

pyang is a YANG validator, transformator and code generator, written
in python. It can be used to validate YANG modules for correctness,
to transform YANG modules into other formats, and to generate code
from the modules.

pyang is compatible with
http://www.ietf.org/internet-drafts/draft-ietf-netmod-yang-02.txt.

WWW: https://github.com/mbj4668/pyang/