Exception in _fill_free_pool function

[rberlier]

Hi,
We are experiencing an exception occurring after we implemented a recycle for DB connections in case of SQL error.
we use a DB connection from the pool this way:

    try:
        cnx_ref = None
        async with dbPool.acquire() as conn:
            cnx_ref = conn
            async with conn.cursor() as cur:
                await cur.execute(sql, args)
                res = await cur.fetchall()
                """
                some logic
                """
    except:
        if cnx_ref is not None:
            await cnx_ref.close()
            dbPool.release(cnx_ref)

And here is the exception we get:

    async with dbPool.acquire() as conn:
  File "/usr/local/lib/python3.7/site-packages/aiomysql/utils.py", line 98, in __aenter__
    self._conn = await self._coro
  File "/usr/local/lib/python3.7/site-packages/aiomysql/pool.py", line 135, in _acquire
    await self._fill_free_pool(True)
  File "/usr/local/lib/python3.7/site-packages/aiomysql/pool.py", line 151, in _fill_free_pool
    if conn._reader.at_eof() or conn._reader.exception():
AttributeError: 'NoneType' object has no attribute 'at_eof'

Is there any solution around this ? Or are we handling things the wrong way ?

[Josephkready]

Same issue as well

[LegendEvent]

something new to this?