qteasy/history.py
def to_db(self):
        """ save HistoryPanel to a database or to update the database with current HistoryPanel

        :return:
        """
        raise NotImplementedError
 save HistoryPanel to a database or to update the database with current HistoryPanel

        :return:
        
save HistoryPanel to a database or to update the database with current HistoryPanel
save HistoryPanel to a database or to update the database with current HistoryPanel
def to_db(self):
        raise NotImplementedError
def to_db ( self ) : raise NotImplementedError
save HistoryPanel to a database or to update the database with current HistoryPanel
save HistoryPanel to a database or to update the database with current HistoryPanel
""" save HistoryPanel to a database or to update the database with current HistoryPanel

        :return:
        """
None
self