Android: Switch build scripts to use python3 (reland2)

Add wnwen@ to third_party/jinja2 to make future fixes/updates easier in

Fixed jinja2 bug that prevented from being detected by
build/ (in patch 0002).

Original CL:

All scripts previously using python under build/android should now use
python3 instead. Ran:

find build/android -name '*.py' -print0 |\
  xargs -0 grep 'env python' -H |\
  grep -v 'python3' -H

Bug: 1228231
Change-Id: Idc4028ebe643533afa3a13af1f55007ba1cdb7fc
Auto-Submit: Peter Wen <>
Reviewed-by: Kentaro Hara <>
Reviewed-by: Peter Kotwicz <>
Commit-Queue: Kentaro Hara <>
Commit-Queue: Peter Wen <>
Cr-Commit-Position: refs/heads/master@{#913020}
GitOrigin-RevId: 0cea52bf866bb93968869722174fd7c63fd31853
3 files changed