Please consider adding ClusterShell 1.8 to Leap 42.3.

ClusterShell consists in a Python library and CLI tools to ease and improve 
cluster and server farms system administration. More info at 
http://clustershell.readthedocs.io/en/latest/ .

In our case, ClusterShell is a building block of our HPC stack at the Stanford 
Research Computing Center, used on server farms just as well as on large HPC 
clusters. The mature project is now 10-year old, was originally initiated at
the CEA,  France where it is used there on even larger clusters (several
thousands of nodes). Its strength is the handling of multi-dimensional
node sets and also node groups, with the ability to bind with external
sources to define node  groups. ClusterShell optionally uses a tree mode
command propagation scheme  (over ssh, mrsh, etc.) to execute administrative
commands in a scalable way. 
The project has recently regained in development activity and interest from 
users but also HPC vendors, especially with Python 3 support in release 1.8.

I'm currently maintaining the package in network:cluster and it has been pushed
to Factory.

Original Factory mailing list request:
https://lists.opensuse.org/opensuse-factory/2017-09/msg00157.html

Let me know if you have any question.

Stephane