Today I was trying to compile a module using an extension in C and
noticed there are differences between compiling it on Python 2.5 and 2.6.
I was trying to compile psutil (svn checkout
http://psutil.googlecode.com/svn/trunk/ psutil) but I think that the
problem may occur with any other package using C extensions.

Python 2.5:

D:\pyftpdlib\svn\psutil\trunk>C:\python25\python.exe setup.py install
running install
running build
running build_ext
error: Python was built with Visual Studio 2003;
extensions must be built with a compiler than can generate compatible
binaries.
Visual Studio 2003 was not found on this system. If you have Cygwin
installed,
you can try compiling with MingW32, by passing "-c mingw32" to setup.py.



Python 2.6:

D:\pyftpdlib\svn\psutil\trunk>C:\python26\python.exe setup.py install
running install
running build
running build_ext
building 'psutil/_psutil_mswindows' extension
error: None