check the account whether in the protfolio dict or not
        :param account:  QA_Account
        :return: QA_Account if in dict
                 None not in list

def get_account(self, account):
        '''
        check the account whether in the protfolio dict or not
        :param account:  QA_Account
        :return: QA_Account if in dict
                 None not in list
        '''
        try:
            return self.get_account_by_cookie(account.account_cookie)
        except:
            QA_util_log_info(
                'Can not find this account with cookies %s' %
                account.account_cookie
            )
            return None