new_contents: import sys
  import re
  
  """
  To do:
  	- Add web interaction to get the string argument
  directly from web instead of having to manually put the 
  argument as a command line argument
  
  """
  
  try:
  	dates = sys.argv[1]
  	listDates = dates.split('\n')
  	xfConsumptionRegex = re.compile(r'[\d,]+$')
  
  	xfConsumptionWeekly = [int(re.sub(r',', '', re.search(xfConsumptionRegex, i).group())) for i in listDates]
  
  	sumXFConsumption = sum(xfConsumptionWeekly)
  
  #print("List of Dates")
  #print(listDates)
  	print("XF Consumption List")
  	print(xfConsumptionWeekly)
  	print("Sum of XF Consumption")
  	print(sumXFConsumption)
  except IndexError:
  	print("""At least one argument required.
  Example:
  
  05 Jul 2015 1,546   10,260  0   11,806
  06 Jul 2015 1,520   10,260  0   11,780
  07 Jul 2015 1,530   10,247  0   11,777
  08 Jul 2015 1,524   10,257  0   11,781
  09 Jul 2015 1,516   10,261  0   11,777
  10 Jul 2015 1,494   10,209  0   11,703
  11 Jul 2015 1,506   10,272  0   11,778
  12 Jul 2015 1,470   10,193  0   11,663""")
  
subject: Add parser for weekly log