I have corrected the patch.

1) In the patch, I would to put also the modifications to
.py files of distribution? I don't thought... So the patch become very big!!!
If you want, I do it.
The patch concerns to implementation (C source files) only!...

2) In the new patch I dropped the code for "__traceback__ part" of
the PEP 3109. Therefore, after application of the fix_raise.py script to
library some modules not works whatever.
File Added: pep3109-2.patch