old_contents: import sys
  import re
  
  NUMBER_REGEX = re.compile(r'([0-9])([a-z])')
  
  def to_camel_case(text):
      # We only care about Graphene types
      if not text.startswith('graphene_') and not text.endswith('_t'):
          return text
  
      res = []
      for token in text[:-2].split('_'):
          uc_token = token.title()
  
  	# We need to do this for types like graphene_point3d_t, which
  	# need to be transformed into GraphenePoint3D, not GraphenePoint3d
          matches = NUMBER_REGEX.match(uc_token)
          if matches and matches.group(2):
              uc_token = ''.join([matches.group(1), matches.group(2).title])
  
          res.append(uc_token)
  
      return ''.join(res)
  
  if __name__ == '__main__':
      in_text = sys.stdin.read()
      sys.stdout.write(to_camel_case(in_text))
  
new_contents: # Copyright 2014  Emmanuele Bassi
  #
  # 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 sys
  import re
  
  NUMBER_REGEX = re.compile(r'([0-9])([a-z])')
  
  def to_camel_case(text):
      # We only care about Graphene types
      if not text.startswith('graphene_') and not text.endswith('_t'):
          return text
  
      res = []
      for token in text[:-2].split('_'):
          uc_token = token.title()
  
  	# We need to do this for types like graphene_point3d_t, which
  	# need to be transformed into GraphenePoint3D, not GraphenePoint3d
          matches = NUMBER_REGEX.match(uc_token)
          if matches and matches.group(2):
              uc_token = ''.join([matches.group(1), matches.group(2).title])
  
          res.append(uc_token)
  
      return ''.join(res)
  
  if __name__ == '__main__':
      in_text = sys.stdin.read()
      sys.stdout.write(to_camel_case(in_text))
  
subject: Add licensing to the introspection filter