title: removing letter from strings in a list
body: <p>lets say I have the list</p>
  
  <pre><code>x = [ 'apple', 'orange', 'grape','strawberry'] 
  </code></pre>
  
  <p>I want to remove the letter 'e' from words in list x, or return a new list which should be like this</p>
  
  <pre><code>['appl', 'orang', 'banana', 'grap', 'strawbrry']
  </code></pre>
  
  <p>I've tried this:</p>
  
  <pre><code>for i in x:
      for z in i:
          if z == 'e':
              i.remove(z)
  </code></pre>
  
  <p>and I get the error I expected: AttributeError: 'str' object has no attribute 'remove'
  So, I tried list(i) before the second loop but it didn't work as i wished.</p>