new_contents: import sys
  
  from Ziggeo import Ziggeo
  
  if(len(sys.argv) < 3):
  	print ("Error\n")
  	print ("Usage: $>python _videos_index_duration.py YOUR_API_TOKEN YOUR_PRIVATE_KEY\n")
  	sys.exit()
  
  api_token = sys.argv[1]
  private_key = sys.argv[2]
  total_duration = 0.0
  count_duration = 0.0
  ziggeo = Ziggeo(api_token, private_key)
  def indexVideos(skip=0):
  	global count_duration, total_duration
  	video_list = ziggeo.videos().index({"limit":100, "skip":skip})
  	for video in video_list:
  		if video['duration'] is not None:
  			total_duration += video['duration']
  			count_duration += 1
  		
  	if(len(video_list) > 0):
  		indexVideos(skip+100)
  	pass
  indexVideos(0)
  
  print("Total Duration = {:.2f} seconds, Average Duration {:.2f} seconds.".format(total_duration, ( total_duration /count_duration )))
  
subject: Add script to get average duration based on video list data