storage.py 文件源码

def check_legacy_v1(self):
        """ Look for legacy wallet and move to new directory
        """
        appname = "piston"
        appauthor = "Fabian Schuh"
        storageDatabase = "piston.sqlite"
        data_dir = user_data_dir(appname, appauthor)
        sqlDataBaseFile = os.path.join(data_dir, storageDatabase)

        if os.path.isdir(data_dir) and not os.path.isdir(self.data_dir):
            # Move whole directory
            shutil.copytree(data_dir, self.data_dir)
            # Copy piston.sql to steem.sql (no deletion!)
            shutil.copy(sqlDataBaseFile, self.sqlDataBaseFile)
            log.info("Your settings have been moved to {}".format(self.data_dir))