new_contents: """
  >>> from pyspark.context import SparkContext
  >>> sc = SparkContext('local', 'test')
  >>> b = sc.parallelize(["KK6JKQ", "Ve3UoW", "kk6jlk", "W6BB"])
  >>> fetchCallSigns(b).size()
  4
  """
  
  import sys
  import urllib3
  
  from pyspark import SparkContext
  
  def processCallSigns(signs):
      """Process call signs"""
      http = urllib3.PoolManager()
      requests = map(lambda x : http.request('GET', "http://qrzcq.com/call/" + x), signs)
      return map(lambda x : x.data, requests)
  
  def fetchCallSigns(input):
      """Fetch call signs"""
      return input.mapPartitions(lambda callSigns : processCallSigns(callSigns))
  
  if __name__ == "__main__":
      master = "local"
      if len(sys.argv) == 2:
          master = sys.argv[1]
      sc = SparkContext(master, "BasicMapPartitions")
      input = sc.parallelize(["KK6JKQ", "Ve3UoW", "kk6jlk", "W6BB"])
      output = sorted(fetchCallSigns(input).collect())
      for str in output:
          print "%s " % (str)
  
  
subject: Add a basic map partitions examples for python