old_contents: # XML Parsing
  import xml.etree.ElementTree as ET
  
  # HTML output
  import dominate as dom
  from dominate.tags import *
  
  # Interact with user machine
  import datetime
  from sys import argv
  import os
  import time
  import webbrowser
  
  second = 1000
  minute = 60000
  hour = 3600000
  
  class SMS:
  	'''base SMS class to store a single message'''
  	def __init__(self, date, party, message):
  		self.date = date
  		self.message = message
  		self.party = party
  		self.responseTime = 0
  
  def transcribe(root, party1, party2):
  	'''simplify the extracted SMS XML tree'''
  	SMSlist = []
  	for sms in root.findall('sms'):
  		newSMS = SMS(sms.attrib['date'], sms.attrib['type'], sms.attrib['body'])
  		SMSlist.append(newSMS)
  	return SMSlist
  
  def main(party1, party2):
  	'''main function that executes program function'''
  	messages = transcribe(ET.parse('sms.xml').getroot(), party1, party2)
  
  if __name__ == '__main__':
  	if (len(argv) < 3):
  		raise Exception('Please enter your name and then your friend\'s name')
  	main(argv[1], argv[2])
  
new_contents: # XML Parsing
  import xml.etree.ElementTree as ET
  
  # HTML output
  import dominate as dom
  from dominate.tags import *
  
  # Interact with user machine
  import datetime
  from sys import argv
  import os
  import time
  import webbrowser
  
  second = 1000
  minute = 60000
  hour = 3600000
  
  class SMS:
  	'''base SMS class to store a single message'''
  	def __init__(self, date, party, message):
  		self.date = date
  		self.message = message
  		self.party = party
  		self.responseTime = 0
  
  def transcribe(root, party1, party2):
  	'''simplify the extracted SMS XML tree'''
  	SMSlist = []
  	for sms in root.findall('sms'):
  		newSMS = SMS(sms.attrib['date'], sms.attrib['type'], sms.attrib['body'])
  		SMSlist.append(newSMS)
  		# Traverse the list backwards to find out when the sms was responded to
  		for prompt in reversed(SMSlist):
  			if prompt.party == sms.party:
  				break
  			else:
  				sms.responseTime = sms.date - prompt.date
  	return SMSlist
  
  def main(party1, party2):
  	'''main function that executes program function'''
  	messages = transcribe(ET.parse('sms.xml').getroot(), party1, party2)
  
  if __name__ == '__main__':
  	if (len(argv) < 3):
  		raise Exception('Please enter your name and then your friend\'s name')
  	main(argv[1], argv[2])
  
subject: Determine response time for messages