使用python，sqlalchemy和psycopg2创建PostgreSQL数据库时出错

from sqlalchemy import create_enginefrom sqlalchemy.orm import sessionmakerengine = create_engine('postgresql+psycopg2://USER:PASSWORD@127.0.0.1:5432/DB_OR_TEMPLATE')session = sessionmaker(bind=engine)()session.connection().connection.set_isolation_level(0)session.execute('CREATE DATAbase test')session.connection().connection.set_isolation_level(1)

如果您没有任何数据库，则应使用

template1

"""Isolation level values."""ISOLATION_LEVEL_AUTOCOMMIT     = 0ISOLATION_LEVEL_READ_COMMITTED = 1ISOLATION_LEVEL_SERIALIZABLE   = 2

http://initd.org/psycopg/docs/connection.html#connection.set_isolation_level

http://initd.org/psycopg/docs/extensions.html#isolation-level-
constants

http://www.postgresql.org/docs/current/static/transaction-
iso.html