old_contents: class HTTPConnection(object):
      """
      Connection to a solr server or several ones
  
      :param server: The server. Can be a single one or a list of servers
                      Example: `localhost:8983` or ``[localhost,solr1.domain.com:8983]``
      """
      def __init__(self,server="localhost:8983"):
          if type(server) == type(''):
              self.url = "http://%s/solr/" % server
              self.servers = [self.url,self.url]
          if type(server) == type([]):
              self.servers = ["http://%s/solr/" % a for a in server]
          
  
new_contents: import urllib
  import json
  
  class HTTPConnection(object):
      """
      Connection to a solr server or several ones
  
      :param server:           The server. Can be a single one or a list of servers
                                Example: `localhost:8983` or ``[localhost,solr1.domain.com:8983]``
  
      :param detect_live_nodes : whether to detect live nodes automativally or not. This assumes 
                                 that one is able to access the IPs listed by Zookeeper.
                                 The default value is `Falsse`
      """
      def __init__(self,server="localhost:8983",detect_live_nodes=False):
          if type(server) == type(''):
              self.url = "http://%s/solr/" % server
              servers = [self.url,self.url]
              if detect_live_nodes:
                  url = servers[0]
                  self.servers = self.detect_nodes(url)
  
          if type(server) == type([]):
              servers = ["http://%s/solr/" % a for a in server]
              if detect_live_nodes:
                  url = servers[0]
                  self.servers = self.detect_nodes(url)
                  
      def detect_nodes(self,url):
          url = url+'zookeeper?path=/live_nodes'
          live_nodes = urllib.urlopen(url).read()
          data = json.loads(live_nodes)
          children = [d['data']['title'] for d in data['tree'][0]['children']]
          nodes = [c.replace('_solr','') for c in children]
          return ["http://%s/solr/" % a for a in nodes]
  
subject: add option to detect live nodes, if wanted