title: python for loop range(bigint)
body: <p>In Python, is there some <em>short</em> way to do something like</p>
  
  <p>"for i in range(n)"</p>
  
  <p>when n is too big for Python to actually create the array range(n)?</p>
  
  <p>(short because otherwise I'd just use a while loop)</p>