Module NodeSet

source code

Cluster node set.

A module to deal efficiently with pdsh-like rangesets and nodesets.
Instances of RangeSet and NodeSet both provide similar operations than
the builtin set() type and Set object.
   [ See http://www.python.org/doc/lib/set-objects.html ]

Usage example:

    # Import NodeSet class
    from ClusterShell.NodeSet import NodeSet

    # Create a new nodeset from pdsh-like pattern
    nodeset = NodeSet("cluster[1-30]")

    # Add cluster32 to nodeset
    nodeset.update("cluster32")

    # Remove from nodeset
    nodeset.difference_update("cluster[2-5]")

    # Print nodeset as a pdsh-like pattern
    print nodeset

    # Iterate over node names in nodeset
    for node in nodeset:
        print node