title: unicurses' addstr() interferes with time.sleep()
body: <p>The <code>time.sleep()</code> delay will sleep before <code>addstr()</code> in the script below</p>
  
  <pre><code>from unicurses import *
  from time import *
  stdscr = initscr()
  addstr("Hello")
  sleep(1)
  endwin()
  </code></pre>
  
  <p>Is there any <code>curses</code> function for delays?</p>