title: Python: TypeError: list indices must be integers, not list
body: <p>I've got two lists of coordinates, they look like this:</p>
  
  <p>list_kp2_ok:</p>
  
  <pre><code>[[1185.60009765625, 933.6000366210938], [1310.4000244140625, 828.0000610351562], [1067.0, 979.0], [1310.0, 828.0], [1423.2000732421875, 814.800048828125], [1306.0, 828.0], [3634.0, 605.0], [1308.0960693359375, 827.7120971679688], [1422.7200927734375, 815.0400390625], [1185.1199951171875, 933.1200561523438], [1186.56005859375, 923.0400390625], [1306.3681640625, 829.4401245117188], [1194.393798828125, 839.80810546875], [1187.1361083984375, 922.7520751953125], [1082.8800048828125, 849.6000366210938]]
  </code></pre>
  
  <p>list_kp2_2_ok:</p>
  
  <pre><code>[[835.0, 1201.0], [1086.0, 850.0], [1187.0, 924.0], [1197.0, 839.0], [1310.0, 828.0], [3634.0, 605.0], [1195.2000732421875, 838.800048828125], [1308.0, 828.0000610351562], [1084.800048828125, 849.6000366210938], [1310.4000244140625, 828.0000610351562], [1186.800048828125, 924.0000610351562], [1296.0, 956.4000244140625], [1082.8800048828125, 849.6000366210938], [1072.800048828125, 944.6400146484375], [1083.4560546875, 850.1760864257812], [1187.1361083984375, 922.7520751953125], [3633.984375, 606.528076171875], [1082.4193115234375, 850.1761474609375], [1306.3681640625, 829.4401245117188], [1181.9521484375, 966.2977294921875], [1306.3682861328125, 828.6107788085938]]
  </code></pre>
  
  <p>Now I need to check if there are any same coordinates on both lists and create a new list of them.
  So I wrote:</p>
  
  <pre><code>list_wsp=[]
  count=0
  count1=0
  print type(count)
  print type(count1)
  for count in list_kp2_ok:
      for count1 in list_kp2_2_ok:
          if list_kp2_ok[count]==list_kp2_2_ok[count1]:
              list_wsp.append(list_kp2_ok[count])
              count1=count1+1
              if count1==len(list_kp2_2_ok)-1:
                  break
          count=count+1
          if count==len(list_kp2_ok)-1:
              break
  </code></pre>
  
  <p>and...</p>
  
  <pre><code>TypeError: list indices must be integers, not list
  </code></pre>
  
  <p>I don't know what's wrong, couldn't find a solution...</p>
  
  <p>Could anyone help me, please?</p>
  
  <p>Maybe there's a simplier way to do such a thing?</p>