code: def _normalize(self, string):
  		''' Returns a sanitized string. '''
  
  		string = string.replace(u'\xb7', '')
  		string = string.replace(u'\u0331', '')
  		string = string.replace(u'\u0323', '')
  		string = string.strip(' \n\rI.')
  		return strinf _normalize(self, string):
  		''' Returns a sanitized string. '''
  
  		string = string.replace(u'\xb7', '')
  		string = string.replace(u'\u0331', '')
  		string = string.replace(u'\u0323', '')
  		string = string.strip(' \n\rI.')
  		return string
docs: Returns a sanitized string.