title: Local MySQLdb connection fails with AttributeError for paramstyle when running GAE development server
body: <p>I'm building a GAE Flask application with Flask-Alchemy, against Cloud SQL, and running <code>dev_appserver</code> to test the application as I build it.</p>
  
  <p>However, if I set the <code>SQLALCHEMY_DATABASE_URI</code> to a <code>mysql+gaerdbms:///appname?instance=instanceid</code> URL, I get the following traceback when trying to call <code>db.create_all()</code>:</p>
  
  <pre><code>Traceback (most recent call last):
    # earlier lines omitted for brevity
    File "/Project/app/foo.bar/foo/bar/admin/__init__.py", line 26, in init_db
      db.create_all()
    File "/Project/app/distlib/flask_sqlalchemy/__init__.py", line 856, in create_all
      self._execute_for_all_tables(app, bind, 'create_all')
    File "/Project/app/distlib/flask_sqlalchemy/__init__.py", line 848, in _execute_for_all_tables
      op(bind=self.get_engine(app, bind), tables=tables)
    File "/Project/app/distlib/flask_sqlalchemy/__init__.py", line 797, in get_engine
      return connector.get_engine()
    File "/Project/app/distlib/flask_sqlalchemy/__init__.py", line 473, in get_engine
      self._engine = rv = sqlalchemy.create_engine(info, **options)
    File "/Project/app/distlib/sqlalchemy/engine/__init__.py", line 332, in create_engine
      return strategy.create(*args, **kwargs)
    File "/Project/app/distlib/sqlalchemy/engine/strategies.py", line 69, in create
      dialect = dialect_cls(**dialect_args)
    File "/Project/app/distlib/sqlalchemy/dialects/mysql/base.py", line 1986, in __init__
      default.DefaultDialect.__init__(self, **kwargs)
    File "/Project/app/distlib/sqlalchemy/engine/default.py", line 124, in __init__
      self.paramstyle = self.dbapi.paramstyle
  AttributeError: 'module' object has no attribute 'paramstyle'
  </code></pre>
  
  <p>What gives? Why is the (DB-API 2.0 required) <code>paramstyle</code> attribute missing?</p>