commit f8a3485dcd41a00c5e99c5be6adc67cb2638b366
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Mon Feb 26 08:22:24 2018 -0800
committer GitHub <noreply@github.com> Mon Feb 26 08:22:24 2018 -0800
tree 78d6cfd847e877c55568adf3fec9583acb5269eb
parent a9e0b070b3e36701d0139361c769d374c4aacf1a

Revert unneccessary changes made in bpo-30296 and apply other improvements. (GH-2624)

(cherry picked from commit 3f2e6f15d64d81633b1fc0b308afc0d6e9026b61)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Lib/pstats.py

diff --git a/Lib/pstats.py b/Lib/pstats.py
index 1b57d26..ded5ae5 100644
--- a/Lib/pstats.py
+++ b/Lib/pstats.py
@@ -530,7 +530,7 @@
         if func in new_callers:
             if isinstance(caller, tuple):
                 # format used by cProfile
-                new_callers[func] = tuple(i[0] + i[1] for i in zip(caller, new_callers[func]))
+                new_callers[func] = tuple(i + j for i, j in zip(caller, new_callers[func]))
             else:
                 # format used by profile
                 new_callers[func] += caller