python-hostlist

1.14 GPL (GNU General Public License)    
  UNRATED

  558 downloads

Python module for hostlist handling

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python-hostlist is a Python module that knows how to expand and collect hostlist expressions.

Example:

  % python
  Python 2.5.1 (r251:54863, Jul 10 2008, 17:24:48)
  [GCC 4.1.2 20070925 (Red Hat 4.1.2-33)] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  >>> import hostlist
  >>> hosts = hostlist.expand_hostlist("n[1-10,17]")
  >>> hosts
  ['n1', 'n2', 'n3', 'n4', 'n5', 'n6', 'n7', 'n8', 'n9', 'n10', 'n17']
  >>> hostlist.collect_hostlist(hosts)
  'n[1-10,17]'
  >>> hostlist.collect_hostlist(["x1y1","x2y2", "x1y2", "x2y1"])
  'x[1-2]y[1-2]'


Bad hostlists or hostnames will result in the hostlist.BadHostlist exception being raised.

The 'hostlist' command is provided to expand/collect hostlists and perform set operations on them. Example:

  % hostlist n[1-10] n[5-20]
  n[1-20]
  % hostlist --difference n[1-10] n[5-20]
  n[1-4]
  % hostlist --expand --intersection n[1-10] n[5-20]
  n5
  n6
  n7
  n8
  n9
  n10


Install directly by running

  python setup.py build   (as yourself)
  python setup.py install (as root)


or just copy the hostlist.py, hostlist and hostlist.1 files to appropriate places.
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Last updated on July 11th, 2012

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