contrib/fuzz/pyutil.h

revlog: improve documentation of the entry tuple

The code in revlog, and outside revlog directly use the index's entry tuple,
with direct integer indexing. This is a voluntary trade off to obtains better
performance from the  Python code at the expense of the developers sanity.

Let's at least have a clear and central documentation about what this tuple is
about.

Differential Revision: https://phab.mercurial-scm.org/D10643

#include <Python.h>

#if PY_MAJOR_VERSION >= 3
#define PYCODETYPE PyObject
#else
#define PYCODETYPE PyCodeObject
#endif

namespace contrib
{

void initpy(const char *cselfpath);
PyObject *pyglobals();

} /* namespace contrib */