我想在SQLAlchemy中执行"如果不存在则创建模式"查询.
engine = sqlalchemy.create_engine(connstr)
schema_name = config.get_config_value('db', 'schema_name')
#Create schema; if it already exists, skip this
try:
engine.execute(CreateSchema(schema_name))
except sqlalchemy.exc.ProgrammingError:
pass
我正在使用Python 3.5.