A fast PostgreSQL Database Client Library for Python/asyncio.
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asyncpg is a database interface library designed specifically for PostgreSQL and Python/asyncio. asyncpg is an efficient, clean implementation of PostgreSQL server binary protocol for use with Python's
asyncioframework. You can read more about asyncpg in an introductory
asyncpg requires Python 3.5 or later and is supported for PostgreSQL versions 9.5 to 13. Older PostgreSQL versions or other databases implementing the PostgreSQL protocol may work, but are not being actively tested.
The project documentation can be found
In our testing asyncpg is, on average, 3x faster than psycopg2 (and its asyncio variant -- aiopg).
.. image:: https://raw.githubusercontent.com/MagicStack/asyncpg/master/performance.png :target: https://gistpreview.github.io/?b8eac294ac85da177ff82f784ff2cb60
The above results are a geometric mean of benchmarks obtained with PostgreSQL
client driver benchmarking toolbench_ in November 2020 (click on the chart to see full details).
asyncpg implements PostgreSQL server protocol natively and exposes its features directly, as opposed to hiding them behind a generic facade like DB-API.
This enables asyncpg to have easy-to-use support for:
asyncpg is available on PyPI and has no dependencies. Use pip to install::
$ pip install asyncpg
.. code-block:: python
import asyncio import asyncpg
async def run(): conn = await asyncpg.connect(user='user', password='password', database='database', host='127.0.0.1') values = await conn.fetch( 'SELECT * FROM mytable WHERE id = $1', 10, ) await conn.close()
loop = asyncio.get_event_loop() loop.run_until_complete(run())
asyncpg is developed and distributed under the Apache 2.0 license.