title: What's the VT100 escape code for the "esc" keyboard key itself
body: <p>I'm writing a script to navigate a text-based menu system, using python's telnetlib to access a serial connection.</p>
  
  <p>I can happily press the F-keys, using the escape codes.  e.g. F9 = "\033OX", where "\033" is the escape sequence.</p>
  
  <p>How do I encode the "esc" keyboard key?  I would have expected just "\033", but that doesn't seem to work.</p>