title: Dictionary gets re-ordered when comparing items
body: <p>I'm comparing a dictionary <code>LIVE_DEPARTURES_DATA</code> of ferry departures to determine if they have the same <code>DEPARTURE TIME</code> and <code>DEPARTURE PORT</code>. As I loop through it and do the relevant checks I noticed the order of the items is changed.</p>
  
  <pre><code>live_departures_data = [{"COMPANY": "Alilauro", "DEPARTURE PORT": "Ischia", "ARRIVAL PORT": "Napoli Molo Beverello", "DEPARTURE DATE": "2019-03-03", "DEPARTURE TIME": "08:40", "ARRIVAL DATE": "2019-03-03", "ARRIVAL TIME": "09:30", "DURATION": "00:50:00", "FERRY TYPE": "Aliscafo", "STATUS": "Active"}, {"COMPANY": "Alilauro", "DEPARTURE PORT": "Procida", "ARRIVAL PORT": "Casamicciola", "DEPARTURE DATE": "2019-03-03", "DEPARTURE TIME": "08:40", "ARRIVAL DATE": "2019-03-03", "ARRIVAL TIME": "09:30", "DURATION": "00:50:00", "FERRY TYPE": "Aliscafo", "STATUS": "Active"}, {"COMPANY": "Alilauro", "DEPARTURE PORT": "Procida", "ARRIVAL PORT": "Napoli Molo Beverello", "DEPARTURE DATE": "2019-03-03", "DEPARTURE TIME": "08:40", "ARRIVAL DATE": "2019-03-03", "ARRIVAL TIME": "09:30", "DURATION": "00:50:00", "FERRY TYPE": "Aliscafo", "STATUS": "Active"}]
  
  for i in range(len(live_departures_data)):
     for j in range(i + 1, len(live_departures_data)):
         if live_departures_data[i]["ARRIVAL PORT"] == live_departures_data[j]["ARRIVAL PORT"] and live_departures_data[i]["DEPARTURE TIME"] == live_departures_data[j]["DEPARTURE TIME"]:  
                  live_departures_data[i].update({'STOPS': 'Via Procida'})
                  live_departures_data[j].update({'STOPS': 'Via Procida'})
  
  print(live_departures_data) 
  </code></pre>
  
  <p>The output is the following - why has the order changed?</p>
  
  <pre><code>[{'STATUS': 'Active', 'ARRIVAL DATE': '2019-03-03', 'DEPARTURE DATE': '2019-03-03', 'STOPS': 'Via Procida', 'DURATION': '00:50:00', 'ARRIVAL PORT': 'Napoli Molo Beverello', 'COMPANY': 'Alilauro', 'ARRIVAL TIME': '09:30', 'FERRY TYPE': 'Aliscafo', 'DEPARTURE TIME': '08:40', ...
  </code></pre>
  
  <hr>
  
  <p>UPDATE:</p>
  
  <p>I've updated to Python 3.7 and run my code. My initial order is kept.</p>