Currently only paramstyle 'qmark' is supported. This makes it hard to migrate application which use the pyformat style (which is default in MySQLDB and MySQL Connector/C).

Suggestion: Additionally support the following paramstyles:

1. format

cursor.execute("SELECT a FROM b WHERE id=%s", ('foo',))

2. pyformat

cursor.execute("SELECT a FROM b WHERE id=%(name)s", {'name' : 'foo'}))

mixing paramstyles shouldn't be allowed and should result in a parsing error.