
The version of python3 shipped with macOS tends to be old (as of macOS Sequoia 15.3.1 this is version 3.9.6 dating from June 2021). Update the build instructions to recommend using the version of python3 that is managed by depot_tools. This should ensure that the build uses a version of python3 that is recent enough (and close to the version used by the bots). It should prevent unexpected failures when recent features are used in build scripts. See https://dawn-review.googlesource.com/c/dawn/+/230174 for an example of build failure that could be caused by an old python3. Bug: none Change-Id: Icb806609ee5be7146cddc83d01a1c57ec2b3b762 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6343778 Commit-Queue: Dirk Pranke <dpranke@google.com> Reviewed-by: Dirk Pranke <dpranke@google.com> Auto-Submit: Sylvain Defresne <sdefresne@chromium.org> Cr-Commit-Position: refs/heads/main@{#1431059}