Great, so I define in my code
session = None
Base = declarative_base()
class Model1(Base):
id = ....
and after user input host IP we can execute code
engine =
create_engine(“postgresql+psycopg2://scott:tiger@somehostname/test”,
poolclass=NullPool)
session = sessionmaker(bind=engine)
and last point how can set new session to Base?
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