sqlalchemy.databases.mysql.MySQLDialect.__init__ ignores non-None module parameter

[Former user]

sqlalchemy.databases.mysql.MySQLDialect.init ignores non-None module parameter. It sets self.module to MySQLdb if module is none, but simply ignores any other value, which leads to AttributeError in MySQLDialect.dbapi method later.

[Former user]

Fix (source patch)

[Mike Bayer]

changeset:1655