Database Connection

A DbConnection is a helper class representing a connection to a PostgreSQL database via the Psycopg adapter. A DbConnection is not necessarily connected. It will typically connect to the database when the ~pyrseas.dbobject.DbObjectDict ~pyrseas.dbobject.DbObjectDict.fetch method is first invoked. It is normally disconnected just before the ~pyrseas.database.Database ~pyrseas.database.Database.from_catalog returns.