On Tue, Apr 20, 2010 at 9:19 PM, Phil Thompson <p...@riverbankcomputing.com> wrote: > When I build my C++ extension on Windows (specifically PyQt with MinGW) > against Python v2.6.5 it fails to run under v2.6.4. The same problem exists > when building against v3.1.2 and running under v3.1.1. > > The error message is... > > ImportError: DLL load failed: The specified procedure could not be found. > > ...though I don't know what the procedure is. > > When built against v2.6.4 it runs fine under all v2.6.x. When built under > v3.1.1 it runs fine under all v3.1.x. > > I had always assumed that an extension built with vX.Y.Z would always run > under vX.Y.Z-1.
I don't know how well it is handled in python, but this is extremely hard to do in general - you are asking about forward compatibility, not backward compatibility. Is there a reason why you need to do this ? The usual practice is to build against the *oldest* compatible version you can, so that it remains compatible with everything afterwards, cheers, David _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com