Re: [Sqlalchemy-tickets] [sqlalchemy] #2715: add more explicit documentation/flags for the many gaerdbms DBAPI options

[sqlalchemy <mi...@zz...>]

#2715: add more explicit documentation/flags for the many gaerdbms DBAPI options
-----------------------------------+--------------------------------------
      Reporter:  moraes            |      Owner:  zzzeek
          Type:  enhancement       |     Status:  closed
      Priority:  medium            |  Milestone:  0.8.xx
     Component:  mysql             |   Severity:  minor - half an hour
    Resolution:  fixed             |   Keywords:  gaerdbms, mysql, dialect
Progress State:  completed/closed  |
-----------------------------------+--------------------------------------

Comment (by mjpieters):

 I initially mistook this as a bug with either the GAE SDK or SQLAlchemy
 bug, but at best it is an unfortunate interaction. In the `rdbms_mysql`
 module,  if `import MySQLdb` fails, `connect` is defined as:

 {{{
 #!python
   def connect(instance=None, database=None):
     logging.error('The rdbms API (Google Cloud SQL) is not available
 because '
                   'the MySQLdb library could not be loaded. Please see the
 SDK '
                   'documentation for installation instructions.')

     raise NotImplementedError('Unable to find the MySQLdb library')
 }}}

 so connecting will raise an exception, but `paramstyle` and other
 parameters, normally imported with `from MySQLdb import *`, are naturally
 missing.

 If you are feeling generous, perhaps the
 `sqlalchemy.dialects.mysql.gaerdbms:MySQLDialect_gaerdbms.dbapi()` class
 method could verify `paramstyle` is present and raise an `ImportError`
 exception if not available.

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2715#comment:8>
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