old_contents: #!/usr/bin/env python
  #
  # The MIT License
  #
  # Copyright (c) 2008 Simon de Vlieger
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  #
  
  import string
  
  
  class KeyMap:
  
      def __init__(self):
          self.map = {}
  
      def __getitem__(self, key):
          if not key:
              # Unbound key
              return str()
          elif key in self.map:
              return self.map[key]
          else:
              raise Exception('Configured keymap (%s)\
  does not exist in bpython.keys' % key)
  
      def __setitem__(self, key, value):
          self.map[key] = value
  
  key_dispatch = KeyMap()
  
  # fill dispatch with letters
  for c in string.ascii_lowercase:
      key_dispatch['C-%s' % c] = (chr(string.ascii_lowercase.index(c) + 1),
                                  '^%s' % c.upper())
  
  # fill dispatch with cool characters
  key_dispatch['C-['] = (chr(27), '^[')
  key_dispatch['C-\\'] = (chr(28), '^\\')
  key_dispatch['C-]'] = (chr(29), '^]')
  key_dispatch['C-^'] = (chr(30), '^^')
  key_dispatch['C-_'] = (chr(31), '^_')
  
  # fill dispatch with function keys
  for x in xrange(1, 13):
      key_dispatch['F%s' % str(x)] = ('KEY_F(%s)' % str(x),)
  
new_contents: #!/usr/bin/env python
  #
  # The MIT License
  #
  # Copyright (c) 2008 Simon de Vlieger
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  #
  
  import string
  
  
  class KeyMap:
  
      def __init__(self):
          self.map = {}
  
      def __getitem__(self, key):
          if not key:
              # Unbound key
              return str()
          elif key in self.map:
              return self.map[key]
          else:
              raise KeyError('Configured keymap (%s)\
  does not exist in bpython.keys' % key)
  
      def __setitem__(self, key, value):
          self.map[key] = value
  
  key_dispatch = KeyMap()
  
  # fill dispatch with letters
  for c in string.ascii_lowercase:
      key_dispatch['C-%s' % c] = (chr(string.ascii_lowercase.index(c) + 1),
                                  '^%s' % c.upper())
  
  # fill dispatch with cool characters
  key_dispatch['C-['] = (chr(27), '^[')
  key_dispatch['C-\\'] = (chr(28), '^\\')
  key_dispatch['C-]'] = (chr(29), '^]')
  key_dispatch['C-^'] = (chr(30), '^^')
  key_dispatch['C-_'] = (chr(31), '^_')
  
  # fill dispatch with function keys
  for x in xrange(1, 13):
      key_dispatch['F%s' % str(x)] = ('KEY_F(%s)' % str(x),)
  
subject: Make KeyMap raise KeyErrors on unavailable keys