title: Best way to replace part of array with another array
body: <p>I'm looking for the most pythonic way of doing something like that:</p>
  
  <pre><code>a = [1,2,3,4,5,6,7,8]
  b = ['a','b','c']
  c = replace(a,b,2)
  
  c is now [1,2,'a','b','c',6,7,8]
  </code></pre>