On Tue, 4 Aug 2009 15:15:35 +0200, Andre Alexander Bell <[email protected]> wrote: > Hello, > > I often have the problem, that the Qt installation on some computers is not > > shipped with the mysql plugin. Hence, I can't access a mysql database from > PyQt on such an computer. > Since I need to have the same compiler, as Qt has been compiled with, to > build > the plugin myself, I thought it would be far easier to implement my own > SqlDriver from within python (e.g. with mysql-python). > Therefore I subclassed QSqlDriver and QSqlResult from PyQt. However, if I > do > so I get a segmentation fault when I run a query on my database connection. > I stripped the code down to the most simple case which just simulates a > database without data. > As soon as I run a query (QSqlQuery) on this database the python shell > crashes > with a segmentation fault. > To figure out why I digged into the qt cpp-source code and followed along > the > QSqlQuery::exec(QString query) method. I followed along the lines and could > > repeat the calls on my on PySqlResult created with createResult() method. > If I do everything in QSqlQuery::exec(QString) my self it works. By using
> QSqlQuery it does not. I wonder if it has to do something with the internal > > assignements done in QSqlQuery::exec: > > *this = QSqlQuery(...) > > Has anybody ever tried to implement a QSqlDriver in python and succeeded? > Any > hint for me? Should be fixed in tonight's PyQt snapshot. Phil _______________________________________________ PyQt mailing list [email protected] http://www.riverbankcomputing.com/mailman/listinfo/pyqt
