docs: def port_is_open():
      """
      Determine if the default port and user is open for business.
      """
      with settings(hide('aborts'), warn_only=True ):
          try:
              if env.verbosity:
                  print "Testing node for previous installation on port %s:"% env.port
              distribution = lsb_release()
          except KeyboardInterrupt:
              if env.verbosity:
                  print >> sys.stderr, "\nStopped."
              sys.exit(1)
          except: #No way to catch the failing connection without catchall? 
              return False
          if distribution.distributor_id <> 'Ubuntu':
              print env.host, 'WARNING: Woven has only been tested on Ubuntu >= 10.04. It may not work as expected on',distribution.description
      return True