title: Trouble with a Sendkeys function
body: <p>So I downloaded a version of Sendkeys for python 2.7. Its working great!...for letters and numbers that can be entered in a string.</p>
  
  <p>The function is of the following form: </p>
  
  <pre><code>def SendKeys(keys, 
               pause=0.05, 
               with_spaces=False, 
               with_tabs=False, 
               with_newlines=False,
               turn_off_numlock=True):
      """
      Sends keys to the current window.
  
      `keys` : str
          A string of keys.
      `pause` : float
          The number of seconds to wait between sending each key
          or key combination.
      `with_spaces` : bool
          Whether to treat spaces as ``{SPACE}``. If `False`, spaces are ignored.
      `with_tabs` : bool
          Whether to treat tabs as ``{TAB}``. If `False`, tabs are ignored.
      `with_newlines` : bool
          Whether to treat newlines as ``{ENTER}``. If `False`, newlines are ignored.
      `turn_off_numlock` : bool
          Whether to turn off `NUMLOCK` before sending keys.
  
      example::
  
          SendKeys("+hello{SPACE}+world+1")
  
      would result in ``"Hello World!"``
      """
  </code></pre>
  
  <p>and these codes are given:</p>
  
  <pre><code>CODES = {
      'BACK':         8,
      'BACKSPACE':    8,
      'BS':           8,
      'BKSP':         8,
      'BREAK':        3,
      'CAP':          20,
      'CAPSLOCK':     20,
      'DEL':          46,
      'DELETE':       46,
      'DOWN':         40,
      'END':          35,
      'ENTER':        13,
      'ESC':          27,
      'HELP':         47,
      'HOME':         36,
      'INS':          45,
      'INSERT':       45,
      'LEFT':         37,
      'LWIN':         91,
      'NUMLOCK':      144,
      'PGDN':         34,
      'PGUP':         33,
      'PRTSC':        44,
      'RIGHT':        39,
      'RMENU':        165,
      'RWIN':         92,
      'SCROLLLOCK':   145,
      'SPACE':        32,
      'TAB':          9,
      'UP':           38,
      'DOWN':         40,
      'BACKSPACE':    8,
      'F1':           112,
      'F2':           113,
      'F3':           114,
      'F4':           115,
      'F5':           116,
      'F6':           117,
      'F7':           118,
      'F8':           119,
      'F9':           120,
      'F10':          121,
      'F11':          122,
      'F12':          123,
      'F13':          124,
      'F14':          125,
      'F15':          126,
      'F16':          127,
      'F17':          128,
      'F18':          129,
      'F19':          130,
      'F20':          131,
      'F21':          132,
      'F22':          133,
      'F23':          134,
      'F24':          135,
  }
  </code></pre>
  
  <p>I just cannot figure out how to use them! Specifically I would like to be able to backspace.</p>
  
  <p>Thank you very much in advance!</p>