old_contents: import requests
  import json
  import time
  
  ndex_base_url = 'http://services.bigmech.ndexbio.org'
  
  def send_request(url_suffix, params):
      res = requests.post(ndex_base_url + url_suffix, data=json.dumps(params))
      res_json = get_result(res)
      return res_json
  
  def get_result(res):
      status = res.status_code
      if status == 200:
          return res.text
      task_id = res.json()['task_id']
      print 'NDEx services task submitted...' % task_id
      time_used = 0
      try:
          while status != 200:
              res = requests.get(ndex_base_url + '/task/' + task_id)
              status = res.status_code
              if status != 200:
                  time.sleep(5)
                  time_used += 5
      except KeyError:
          next
          return None
      print 'NDEx services task complete.' % task_id
      return res.text
  
new_contents: import requests
  import json
  import time
  
  ndex_base_url = 'http://services.bigmech.ndexbio.org'
  
  def send_request(url_suffix, params):
      res = requests.post(ndex_base_url + url_suffix, data=json.dumps(params))
      res_json = get_result(res)
      return res_json
  
  def get_result(res):
      status = res.status_code
      if status == 200:
          return res.text
      task_id = res.json()['task_id']
      print 'NDEx task submitted...'
      time_used = 0
      try:
          while status != 200:
              res = requests.get(ndex_base_url + '/task/' + task_id)
              status = res.status_code
              if status != 200:
                  time.sleep(5)
                  time_used += 5
      except KeyError:
          next
          return None
      print 'NDEx task complete.'
      return res.text
  
subject: Fix messages in NDEx client