[Python-Dev] Binary Compatibility Issue with Python v2.6.5 and v3.1.2

[Phil Thompson]

On Tue, 20 Apr 2010 22:24:44 +0200, "Martin v. Löwis" <martin at v.loewis.de>
wrote:
> Phil Thompson 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.
>> 
>> Am I wrong in that assumption, or is this a bug in the latest versions?
> 
> You are not wrong in that assumption, but it still might not be a bug in
> the latest version. It could also be a bug in MingW or PyQt.
> 
> Before we can judge on that, we need to understand what exactly happened.
> 
> As a starting point for further research, try the sxstrace utility of
> your Vista installation.

What Vista installation? XP I'm afraid...

Phil