We are immensely proud to release on PyPI the first beta package of Psycopg 3!
Psycopg 3 is a complete rewrite of Psycopg 2, maintaining the same fundamental libpq wrapper architecture and DB-API interface design, but exposing new features to better work with the newer versions of Python and PostgreSQL.
On the Python side, Psycopg 3 allows the use of asyncio-based concurrency and static typing. Many improvement to the Python interface make the library much simpler and more idiomatic to use,
On the PostgreSQL side, Psycopg 3 makes use of server-side parameters, prepared statements, binary parameters, and great support for COPY operations.
But the most outstanding feature of the project is not a technical one: Psycopg 3 was made possible by the great generosity of many sponsors, who have funded the development of the project. Among the many backers, we are especially grateful to Postgres Professional and Command Prompt, Inc, which have given the most outstanding support. But many other companies and individuals, each one in their capacity, have shown concrete support for free software development and progress. We sincerely hope that you will find this work useful and that you will feel proud for having contributed to it.
Where do we go from here? The hope is that the interface of the adapter will not change excessively before a definitive 3.0 release: the project has already been used in a few production environments, in the past months, and a lot of real world feedback has already helped to improve the interface and functionalities. We invite you to test the project and give us your feedback. So...
pip install -U pip pip install --pre psycopg[binary]
Please try it, test it, and let us know how it goes!