title: Python Sorting a text file by fields
body: <p>I'm having some trouble sorting data from a text file by a certain field. Possibly by multiple fields later. The .txt is several thousands of lines of code. I'm brand new to python so my code is probably a bit messy. For example, this is the textfile i would read from:</p>
  
  <pre><code>stuff
  123 1200 id-aaaa stuart@test.com
  322 1812 id-wwww machine-switch@test.com
  839 1750 id-wwww gary2-da@test.com
  500 0545 id-aaaa abc123@test.com
  525 1322 id-bbbb zyx321@test.com
  </code></pre>
  
  <p>my code so far is as follows: </p>
  
  <pre><code>filelist = open("info.txt").readlines()
  splitlist = list()
  
  class data:
      def __init__(self, eventName, time, identity, domain):
          self.evenName = eventName
          self.time = time
          self.identity = identity
          self.domain = domain
  
  for line in filelist:
      filelist = list.split(', ')
      splitlist.append(filelist)
  
  for column in splitlist:
      if (len(column) &gt; 1): #to skip the first line
          eventName = column[0].strip()
          time = column[1].strip()
          identity = column[2].strip()
          domain = column[3].strip()
  </code></pre>
  
  <p>I want to sort the .txt file line by line by the identity, then maybe by time. I saw that this could be done by classes in the python tutorial, so i'm trying to go that route. Please advise. Thank you!</p>