title: What is the complexity of using list() while copying a list in python?
body: <p>I have a list:</p>
  <pre><code>a = [1,2,3,4]
  </code></pre>
  <p>and now I want to make a copy of the list <code>a</code> as list <code>b</code></p>
  <pre><code>b = list(a)
  </code></pre>
  <p>I want to know the complexity of the step where I make a copy of the list <code>a</code>.</p>