code: def enrich(self, column):
          
  
          if column not in self.data.columns:
              return self.data
  
          self.data["user"], self.data["email"] = zip(*self.data[column].map(self.__parse_addr))
  
          return self.data
docs: This method creates two new columns: user and email.
          Those contain the information coming from the usual tuple of
          user <email> found in several places like in the mailing lists
          or the git repositories commit.
  
          :param column: column to be used for this parser
          :type column: string
  
          :returns: dataframe with two new columns
          :rtype: pandas.DataFrame