python - exception in sqlalchemy with gevent -

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at first. project use sqlalchemy==0.9.3 gunicorn==19.3.0. runs perfect.

recently, upgrade sqlalchemy 1.0.4. then, there exist exception.

error  sqlalchemy.pool.queuepool[101946]:[myproj]pool => _finalize_fairy exception during reset or similar traceback (most recent call last):   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 631, in _finalize_fairy     fairy._reset(pool)   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 765, in _reset     pool._dialect.do_rollback(self)   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/sqlalchemy/dialects/mysql/base.py", line 2519, in do_rollback     dbapi_connection.rollback()   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/pymysql/connections.py", line 711, in rollback     self._read_ok_packet()   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/pymysql/connections.py", line 685, in _read_ok_packet     pkt = self._read_packet()   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/pymysql/connections.py", line 882, in _read_packet     packet_header = self._read_bytes(4)   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/pymysql/connections.py", line 899, in _read_bytes     data = self._rfile.read(num_bytes)   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/pymysql/_socketio.py", line 59, in readinto     return self._sock.recv_into(b)   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/gevent/socket.py", line 428, in recv_into     self._wait(self._read_event)   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/gevent/socket.py", line 298, in _wait     self.hub.wait(watcher)   file "/srv/virtualenvs/myprojenv/local/lib/python2.7/site-packages/gevent/hub.py", line 342, in wait     assert result unique, 'invalid switch %s: %r (expected %r)' % (getcurrent(), result, unique) assertionerror: invalid switch <greenlet @ 0x7f6fedf28730: <functools.partial object @ 0x7f6fee2eb470>(<socket @ 0x7f6fee0b1550 fileno=25 sock=127.0.0.1, ('127.0.0.1', 40742))>: <gevent.event.asyncresult object @ 0x7f6fedeaed50> (expected <object object @ 0x7f6fedf84b60>)

is there can help? much.


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