访问 PostgreSQL 数据库的 Python 开发库:aiopg
aiopg是一个用于从asyncio (PEP-3156/tulip) 框架访问 PostgreSQL 数据库的Python 开发库。它是Psycopg数据库驱动程序异步功能的封装。
Exampleimport asyncio from aiopg.pool import create_pool dsn = 'dbname=jetty user=nick password=1234 host=localhost port=5432' @asyncio.coroutine def test_select(): pool = yield from create_pool(dsn) with (yield from pool) as conn: cur = yield from conn.cursor() yield from cur.execute('SELECT 1') ret = yield from cur.fetchone() assert ret == (1,), ret asyncio.get_event_loop().run_until_complete(test_select())
Example of SQLAlchemy optional integration
import asyncio from aiopg.sa import create_engine import sqlalchemy as sa metadata = sa.MetaData() tbl = sa.Table('tbl', metadata, sa.Column('id', sa.Integer, primary_key=True), sa.Column('val', sa.String(255))) @asyncio.coroutine def go(): engine = yield from create_engine(user='aiopg', database='aiopg', host='127.0.0.1', password='passwd') with (yield from engine) as conn: yield from conn.execute(tbl.insert().values(val='abc')) res = yield from conn.execute(tbl.select()) for row in res: print(row.id, row.val) asyncio.get_event_loop().run_until_complete(go())
Please use:
$ python3 runtests.py
for executing project's unittests
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