old_contents: import re
  
  
  # From this response in Stackoverflow
  # http://stackoverflow.com/a/19053800/1072990
  def to_camel_case(snake_str):
      components = snake_str.split('_')
      # We capitalize the first letter of each component except the first one
      # with the 'title' method and join them together.
      return components[0] + "".join(x.title() if x else '_' for x in components[1:])
  
  
  # From this response in Stackoverflow
  # http://stackoverflow.com/a/1176023/1072990
  def to_snake_case(name):
      s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)
      return re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()
  
  
  def to_const(string):
      return re.sub('[\W|^(?=\d)]+', '_', string).upper()
  
new_contents: import re
  
  
  # From this response in Stackoverflow
  # http://stackoverflow.com/a/19053800/1072990
  def to_camel_case(snake_str):
      components = snake_str.split('_')
      # We capitalize the first letter of each component except the first one
      # with the 'title' method and join them together.
      return components[0] + "".join(x.title() if x else '_' for x in components[1:])
  
  
  # From this response in Stackoverflow
  # http://stackoverflow.com/a/1176023/1072990
  def to_snake_case(name):
      s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)
      return re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()
  
  
  def to_const(string):
      return re.sub('[\W|^]+', '_', string).upper()
  
subject: Allow numbers in to_constant