title: Append dict items to a list with a single line for loop
body: <p>I have a list </p>
  
  <pre><code>lst = []
  </code></pre>
  
  <p>I have dict entries</p>
  
  <pre><code>a= {'a':1,'b':2}
  </code></pre>
  
  <p>I wish to write a for loop in a comprehension manner filling the list. 
  What I have tried is </p>
  
  <pre><code>lst.append(k,v) for (k,v) in a.items()
  </code></pre>
  
  <p>I need to then update the dict as</p>
  
  <pre><code>a = {'c':3, 'd':4}
  </code></pre>
  
  <p>Then again update the list <code>lst</code>.</p>
  
  <p>Which adds the tuples as <code>[('a',1)('b',2)('c',3)('d',4)]</code>
  What is the right way to iterate through a dict and fill the list? </p>