Merged revisions 78766 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r78766 | benjamin.peterson | 2010-03-07 11:10:51 -0600 (Sun, 07 Mar 2010) | 1 line

  prevent generator finalization from invalidating sys.exc_info() #7173
........
diff --git a/Python/ceval.c b/Python/ceval.c
index 8a24f11..f793db3 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -1107,7 +1107,7 @@
 	assert(stack_pointer != NULL);
 	f->f_stacktop = NULL;	/* remains NULL unless yield suspends frame */
 
-	if (f->f_code->co_flags & CO_GENERATOR) {
+	if (co->co_flags & CO_GENERATOR && !throwflag) {
 		if (f->f_exc_type != NULL && f->f_exc_type != Py_None) {
 			/* We were in an except handler when we left,
 			   restore the exception state which was put aside