sample scripts for using RHEV REST-API:
all settings are in the file rhev_settings.py 
HOST_PORT - host and port of RHEV instance format: host:port
USERNAME  - username of api user
PASSWORD  - no comments
CLUSTER   - cluster for new network attaching ## TODO: list here?
DC        - datacenter for new network attaching 
TAG       - parent tag for new tags
NIC       - NIC for non-rhevm networks 
OSTYPES    - dict of ostypes and pathes of image location (cdrom location), pathes MUST be valid on hosts (or use <placement_policy> for vm xml
##OSTYPES = {"other_linux": None,"windows_xp": None,"windows_7" : None,"rhel_5x64": "/mnt/share/images/RHEL/5/6/x86_64/","rhel_6x64" : None}


etc.