title: How to remove every non-alphabetic character in Python 3
body: <p>I am coding the cesar chipper in Python 3, I have hit the point where I have to get rid of special characters in the chipper part. My current solution actually works but unwanted characters pass through:</p>
  
  <pre><code>chain = "abcàéÉç"
  listOfChain = list(chain)
     for element in listOfChain:
        if element.isalpha():
             print(element)
  </code></pre>
  
  <p>The code above should only have print <code>abc</code> but <code>àéÉç</code> has passed. I only want to have <code>A-Z</code> and <code>a-z</code>, without <code>éèêëç</code> and so on... How to check if these characters are in the list ?<br>
  So far <code>isalpha()</code> let those pass. Any other way to do that?</p>