[Sqlalchemy-tickets] Issue #3395: celery use sqlalchemy is error (zzzeek/sqlalchemy)

[robert h. <iss...@bi...>]

New issue 3395: celery use sqlalchemy is error
https://bitbucket.org/zzzeek/sqlalchemy/issue/3395/celery-use-sqlalchemy-is-error

robert huang:


```
#!python

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/celery/app/trace.py", line 283, in trace_task
    uuid, retval, SUCCESS, request=task_request,
  File "/usr/local/lib/python2.7/site-packages/celery/backends/base.py", line 256, in store_result
    request=request, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/celery/backends/database/__init__.py", line 63, in _inner
    return fun(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/celery/backends/database/__init__.py", line 118, in _store_result
    session = self.ResultSession()
  File "/usr/local/lib/python2.7/site-packages/celery/backends/database/__init__.py", line 111, in ResultSession
    **self.engine_options
  File "/usr/local/lib/python2.7/site-packages/celery/backends/database/session.py", line 60, in session_factory
    engine, session = self.create_session(dburi, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/celery/backends/database/session.py", line 46, in create_session
    engine = self.get_engine(dburi, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/celery/backends/database/session.py", line 43, in get_engine
    return create_engine(dburi, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/__init__.py", line 386, in create_engine
    return strategy.create(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/strategies.py", line 74, in create
    dbapi = dialect_cls.dbapi(**dbapi_args)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/dialects/mysql/mysqldb.py", line 92, in dbapi
    return __import__('MySQLdb')
ImportError: No module named MySQLdb
```

i sure my python install MySQL-python and i in python shell can import MySQLdb