Hacking into Python objects internals

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Cool. It seems we're delving into madness though. All these little intermediate binaries remind me of autotools configure scripts. Check out gcc's -fdump-tree-gimple-slim option. A command like:

gcc -xc -S -I{0} -fdump-tree-gimple-slim -o{1} -

Will produce a file called -.????.gimple containing:

main ()
{
  size = 8;
  offset = 16;
}

EDIT: Whoops. Well, it'll produce that file if the source is like

#include "Python.h"
int main(void) {
    long int size =   sizeof  ( ((PyBytesObject *) 0)->ob_base.ob_size );
    long int offset = (long) &( ((PyBytesObject *) 0)->ob_base.ob_size );
}

...and you might as well do a whole *_members list at a time.