Add python3 support to gsutil recipe module
Add python3 support to gsutil recipe module

Bug: 1227140
Change-Id: I2a27289335c66f34adaa47be1e9fd0fd13abcc56
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3010716
Commit-Queue: Anthony Polito <05bb588aa9020353543fee7ac4e6e0a3d0d6f6ed@google.com>
Reviewed-by: Anthony Polito <05bb588aa9020353543fee7ac4e6e0a3d0d6f6ed@google.com>

CoherentLabs/depot_tools,CoherentLabs/depot_tools