File Content: env.py """Pylons bootstrap environment. Place 'pylons_config_file' into alembic.ini, and the application will be loaded from there. """ from alembic import context from paste.deploy import loadapp from logging.config import fileConfig from sqlalchemy.engine.base import Engine try: # if pylons app already in, don't create a new app from pylons import config as pylons_config pylons_config['__file__'] except: config = context.config # can use config['__file__'] here, i.e. the Pylons # ini file, instead of alembic.ini config_file = config.get_main_option('pylons_config_file') fileConfig(config_file) wsgi_app = loadapp('config:%s' % config_file, relative_to='.') # customize this section for non-standard engine configurations. meta = __import__("%s.model.meta" % wsgi_app.config['pylons.package']).model.meta # add your model's MetaData object here # for 'autogenerate' support # from myapp import mymodel # target_metadata = mymodel.Base.metadata target_metadata = None def run_migrations_offline(): """Run migrations in 'offline' mode. This configures the context with just a URL and not an Engine, though an Engine is acceptable here as well. By skipping the Engine creation we don't even need a DBAPI to be available. Calls to context.execute() here emit the given string to the script output. """ context.configure( url=meta.engine.url, target_metadata=target_metadata, literal_binds=True) with context.begin_transaction(): context.run_migrations() def run_migrations_online(): """Run migrations in 'online' mode. In this scenario we need to create an Engine and associate a connection with the context. """ # specify here how the engine is acquired # engine = meta.engine raise NotImplementedError("Please specify engine connectivity here") with engine.connect() as connection: context.configure( connection=connection, target_metadata=target_metadata ) with context.begin_transaction(): context.run_migrations() if context.is_offline_mode(): run_migrations_offline() else: run_migrations_online() Submit