title: Count the number of unique strings in a list? Python 3
body: <p>I am new to Python. I have a list, with duplicate entries. Is their any way you can count the number of UNIQUE strings? Regards,</p>
  
  <pre><code>input1 = input("Name ")
  input2 = []
  input2.append(input1)
  while input1:
    input1 = input("Name ")
    input2.append(input1)
  </code></pre>
  
  <p>I just want to print out the number of unique names entered. Thanks!</p>