As reported in python/devguide#1607, if an error happens when executing make venv, it will still be reported as successful ("The venv has been created in the ./venv directory").

The set -e option should be enabled to exit on error.

Linked PRs

• gh-136854: Exit on error in make venv #136856
• [3.14] gh-136854: Exit on error in make venv (GH-136856) #136860
• [3.13] gh-136854: Exit on error in make venv (GH-136856) #136861