Auto detect os and distribution w/ using osinfo-db

auto_detect_os_and_dist_w_using_osinfo-db

$ ipython
Python 2.7.13 (default, Jan 12 2017, 17:59:37) 
Type "copyright", "credits" or "license" for more information.

IPython 3.2.1 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: import sys

In [2]: sys.path.insert(-1, "/usr/share/virt-manager/")

In [3]: from virtinst.osdict import OSDB

In [4]: OSDB.lookup_os_by_media("/var/lib/libvirt/images/isos/CentOS-7-x86_64-DVD-1611.iso")
Out[4]: 'centos7.0'

In [5]: cat /etc/fedora-release
Fedora release 25 (Twenty Five)

In [6]: ^D
$ rpm -q osinfo-db virt-install
osinfo-db-20170225-1.fc25.noarch
virt-install-1.4.1-1.fc25.noarch
$