title: Append to a file, but always keep some text on the last line
body: <p>I am working on this python file and I am appending information to it using user input. However, I have to be able to leave a bottom signature or a hard coded text without my append writting over it as soon as I re-run my program.</p>
  
  <ul>
  <li><p>Example:  <code>First Name \n Last Name \n sig \n</code></p>
  
  <p><code>First Name \n Last Name \n sig \n</code></p></li>
  </ul>
  
  <p>I am wanting </p>
  
  <pre><code>First Name \n
  Last Name \n
  First Name \n
  Last Name \n
  sig
  </code></pre>