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There are several Python drivers for PostgreSQL. This is the incomplete feature matrix for them; please help complete it as you see fit.

In general, Python users want to use psycopg2 unless they have a strong reason to try another driver, most of which are no longer maintained. Since DBAPI allows drivers to have different semantics, porting applications from one driver to another is non-trivial.

Software License Platforms Python versions DB API 2.0 Native (uses libpq) Last Release Notes
Psycopg2 LGPL Unix, Win32 2.6-3.6 yes yes 2019 Most popular python driver, required for most Python+Postgres frameworks
pg8000 BSD any (pure Python) 3.3+ yes no 2019 Used by Web2Py. current updated official site
py-postgresql BSD any (pure Python) 3.0+ yes no 2018 Pure Python with optional C accelerator modules,<br\>extensive custom API. Python 3 only.
PyGreSQL BSD Unix, Win32 2.6 thru 3.6 yes yes 2017 The first PostgreSQL adapter for Python. Still actively maintained.
ocpgdb BSD Unix 2.3-2.6 yes yes 2010 PG8.1+
bpgsql LGPL any (pure Python) 2.3-2.6 yes no 2009 labeled alpha
aiopg BSD any 3.52+ (ish) Native 2019

More abandoned driver projects:

There is similar page on the Python wiki

Python PostgreSQL Driver TODO