title: How to undo effects of `import readline`?
body: <p>Adding <code>import readline</code> to the source code affects builtin functions (like <code>input()</code> and <code>raw_input()</code>) enabling GNU readline, history and all that arrow stuff. I wonder, is there any way to undo it?</p>
  
  <p>P.S. "Solutions" like <code>del readline</code> and <code>from __builtins__ import raw_input</code> don't work. You can try <code>python2 -c "raw_input(); import readline; raw_input(); del readline; raw_input()"</code> to check it.</p>