code: def camel2word(string):
      
      def wordize(match):
          return ' ' + match.group(1).lower()
  
      return string[0] + re.sub(r'([A-Z])', wordize, string[1:])
docs: Covert name from CamelCase to "Normal case".
  
      >>> camel2word('CamelCase')
      'Camel case'
      >>> camel2word('CaseWithSpec')
      'Case with spec'