There are now less that 100 days until the end of life
of Python 2(aka _legacy_ Python) https://pythonclock.org/ .
The code compatibility check for python2 and python3
used the following tools: futurize, flake8

Related tasks:
1. https://github.com/nodejs/node/issues/24512
2. https://github.com/v8/v8/pull/35

Bug: v8:8594
Change-Id: Ia081a158a2b41cd880a5d47bb340f21858340d42
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864942
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64381}