old_contents: import zc.zk
  from zkfarmer.conf import ConfBase
  from zkfarmer import ZkFarmer
  
  class Farm(ConfBase):
      def write(self, nodes):
          print nodes
  
  zkconn = zc.zk.ZooKeeper('localhost:2181')
  farmer = ZkFarmer(zkconn)
  farmer.export('/services/test', Farm())
  
new_contents: import sys
  import os
  sys.path.append(os.path.dirname(os.path.abspath(__file__)) + '/..')
  
  import zc.zk
  from zkfarmer.conf import ConfBase
  from zkfarmer import ZkFarmer
  
  class Farm(ConfBase):
      def write(self, nodes):
          print nodes
  
  zkconn = zc.zk.ZooKeeper('localhost:2181')
  farmer = ZkFarmer(zkconn)
  farmer.export('/services/test', Farm())
  
subject: fix the import path for the export.py example