Merge "Upgrade the 'stack' script to python3." am: ed37bd6420 am: 7d1443fa38 am: a4d2ca9ea6

Original change: https://android-review.googlesource.com/c/platform/development/+/1668508

Change-Id: I022baaa4afc3a8a7eaacfc3123fb0d6119332fee