title: How to append custom multiples of elements to a list in Python?
body: <pre><code>L = [[a1,a2,a3...100] , [b1,b2,b3...100]]
  </code></pre>
  
  <p>I want to append </p>
  
  <pre><code>[[c1,c1,c1..10, c2,c2,c2...10, ..., c10,c10,c10...10].
  </code></pre>
  
  <p>Is there a way where I can append it using a single line?</p>
  
  <pre><code>L.append([[c1]*10,[c2]*10]...)
  </code></pre>
  
  <p>The above line causes the appending as sublists. I don't want that.</p>
  
  <p>Is there any way to create a custom list and append it on the fly</p>
  
  <p>Thanks in advance!</p>