Splet22. nov. 2024 · Also, the module isn't the problem. You never imported it, so the variable pycopg2 is not defined, as the error says. Try to use import psycopg2 before trying to do … Splet03. avg. 2016 · Actually you can use BEGIN; and COMMIT; with async. What you need is a connection pool setup and make sure each green thread gets its own connection (Just like a real thread would in a multithreaded application). You cannot use psycopg2's builtin transaction handling. Share Improve this answer Follow answered Aug 3, 2016 at 13:05 …
More advanced topics — Psycopg 2.9.6 documentation
SpletBefore version 3.1, AsyncConnection.connect()may still block on DNSname resolution. To avoid that you should set the hostaddr connectionparameter, or use the … Splet04. avg. 2016 · We need high-performance, low-latency access to the advanced features of PostgreSQL. The most obvious option was psycopg2—the most popular Python driver for PostgreSQL. It is well-supported, stable, proven technology. There is also aiopg, which provides async interface on top of psycopg2. With that there is an obvious question: why … two bathroom trailer
[1.4] The asyncio extension requires an async driver to be used.
Splet03. dec. 2024 · Note that if you are using any synchronous SQLAlchemy functions such as engine.create_all() or alembic migrations then you still have to install a synchronous DB … Splet06. mar. 2024 · This didn't stop psycopg2 to work asynchronously, exposing two different interfaces for it: a purely asynchronous one where the application must explicitly poll () to bring forward the connection/execution process: it breaks the DBAPI interface but allows frameworks which can't make blocking calls anyway (such as the revered Twisted) to use it; Splet!AsyncConnectionPool has a very similar interface to the ConnectionPool class but its blocking methods are implemented as !async coroutines. It returns instances of … two battery mod with touchscreen