From: Gabriel Genellina on 29 Jan 2010 17:08 En Thu, 28 Jan 2010 05:07:00 -0300, Durumdara <durumdara(a)gmail.com> escribi�: > I have an exotic db, with exotic drivers, and it have buggy ODBC driver. > > But I have native driver - under Delphi. > > I need to access this DB under Pylons (or mod_python). > [...] > I think to COM/OLE, because it is accessable from all program, and I > think > to DLL (but DLL have problematic parameterisation). So, you can query the database in Delphi, and you want to be able to do that from Python. Your two ideas are feasible: you may write a DLL (or a COM object) in Delphi, that takes a query string, executes it, and returns the resulting data. All in Delphi code, no Python involved. Keep the memory allocation in Delphi - allocate and return a plain PChar buffer, and include a free() function to deallocate it when the other side is done using it. From Python, you may use ctypes [1] to call the DLL functions, or pywin32 [2] to invoke the COM object. Both ways are easy enough. [1] http://docs.python.org/library/ctypes.html [2] http://sourceforge.net/projects/pywin32/ -- Gabriel Genellina
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