title: python add dictionary to existing dictionary
body: <p>What am I doing wrong here? The append inside the dictionary doesn't seem to be working</p>
  
  <pre><code>final = []
  
  topid = { 
      "ida" : "ida",
      "idb" : "idb",
      "idc" : "idc",
      "subid" : {}
  }
  
  for subid in subids:
      insubid = {
          "name" : subid.name, 
          "sida" : "sida",
          "sidb" : "sidb",
          "sidc" : "sidc",
      }
      topid["subid"].append(insubid)
  
  final.append(topid)
  </code></pre>
  
  <p>I'm getting the error:</p>
  
  <blockquote>
    <p>AttributeError: 'dict' object has no attribute 'append'</p>
  </blockquote>