aiomysql is a "driver" for accessing a MySQL database from the asyncio (PEP-3156/tulip) framework. It depends on and reuses most parts of PyMySQL . aiomysql tries to be like awesome aiopg library and preserve same api, look and feel.
Internally aiomysql is copy of PyMySQL, underlying io calls switched to async, basically yield from and asyncio.coroutine added in proper places)). sqlalchemy support ported from aiopg.
http://aiomysql.readthedocs.org/
https://groups.google.com/forum/#!forum/aio-libs
aiomysql based on PyMySQL , and provides same api, you just need to use await conn.f() or yield from conn.f() instead of calling conn.f() for every method.
Properties are unchanged, so conn.prop is correct as well as conn.prop = val.
import asyncio
from aiomysql import create_pool
loop = asyncio.get_event_loop()
async def go():
async with create_pool(host='127.0.0.1', port=3306,
user='root', password='',
db='mysql', loop=loop) as pool:
async with pool.get() as conn:
async with conn.cursor() as cur:
await cur.execute("SELECT 42;")
value = await cur.fetchone()
print(value)
loop.run_until_complete(go())Connection pooling ported from aiopg :
import asyncio
import aiomysql
loop = asyncio.get_event_loop()
@asyncio.coroutine
def test_example():
pool = yield from aiomysql.create_pool(host='127.0.0.1', port=3306,
user='root', password='',
db='mysql', loop=loop)
with (yield from pool) as conn:
cur = yield from conn.cursor()
yield from cur.execute("SELECT 10")
# print(cur.description)
(r,) = yield from cur.fetchone()
assert r == 10
pool.close()
yield from pool.wait_closed()
loop.run_until_complete(test_example())Sqlalchemy support has been ported from aiopg so api should be very familiar for aiopg user.:
import asyncio
from aiomysql.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='root',
db='aiomysql',
host='127.0.0.1',
password='')
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())
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