title: How to use a for loop to ignore every non-alphabetic character in a string and add to a new string? Python 3
body: <p>Im trying to ignore every non-alphabetic character in a string and add the alphabetic string to a new string so it can be checked if it is a palindrome regardless of case.</p>
  
  <p>So far I have</p>
  
  <pre><code>new_str = ''
  for ch in s:
      ch = ch.lower
      if s.isalpha():
          s = s + new_str
  
  return s == is_palindrome
  </code></pre>
  
  <p>I am calling is_palindrome prom a previous function which checks if a lowercase word is a palindrome.
  Any help would be greatly appreciated</p>