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from sqlalchemy import *
from migrate import *
def upgrade(migrate_engine):
try:
meta = MetaData(bind=migrate_engine)
server = Table('server', meta, autoload=True)
subnet = Column('subnet', Integer, nullable=False)
subnet.create(server)
except:
pass
def downgrade(migrate_engine):
try:
meta = MetaData(bind=migrate_engine)
server = Table('server', meta, autoload=True)
server.c.subnet.drop()
except:
pass