"Martin v. Löwis", 19.02.2012 23:24:
When compiling for PyPy, Cython therefore needs a way to tell PyPy about any changes. For the tstate->curexc_* fields, there are the two functions PyErr_Fetch() and PyErr_Restore(). Could we have two similar "official" functions for the exc_* fields? Maybe PyErr_FetchLast() and PyErr_RestoreLast()?
I wouldn't call the functions *Last, as this may cause confusion with sys.last_*. I'm also unsure why the current API uses this Fetch/Restore pair of functions where Fetch clears the variables. A Get/Set pair of functions would be more natural, IMO (where Get returns "new" references). This would give PyErr_GetExcInfo/PyErr_SetExcInfo.
Ok, I added a tracker ticket and I'm working on a patch. http://bugs.python.org/issue14098 Stefan