title: Remove square brackets from list
body: <p>I have this list:</p>
  
  <pre><code>list1 = [['123'], ['456'], ['789']]
  </code></pre>
  
  <p>I want to convert this list into a string and later store it into a column in a database in this form:   </p>
  
  <pre><code>123 / 456 / 789
  </code></pre>
  
  <p>I tried doing this:</p>
  
  <pre><code>s2 = ", ".join(repr(e) for e in list1)
  print(s2)
  </code></pre>
  
  <p>But this is what I'm getting:</p>
  
  <pre><code>['123'], ['456'], ['789']
  </code></pre>
  
  <p>Any ideas on what should I do next to get the desired output?</p>