Building Python Packages from Source on Windows

I always forget how to build Python packages, such as psyco and simplejson that require C/C++ code to be compiled. The usual error I get from running "python install" is

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

Now, I do not have Visual Studio 2003, but I do have mingw32. (Grab cygwin and when selecting packages, make sure than mingw-runtime and gcc are selected.) Now, back with our file, execute:

python build_ext --compiler=mingw32 install

Hopefully that should solve any issues.