"--version" option does not produce output matching an existing git tag

Bug Report

$ mypy --version
mypy 1.15.0 (compiled: yes)

This version output does not match an existing tag in git.

https://github.com/python/mypy/tags
https://github.com/python/mypy/releases/tag/v1.15.0

I would expect either the --version option to return the version number with a "v" prefix or the git tags to omit the "v" prefix to match the version output.

The existing behavior causes issues where other tools or users are using the --version output to point to a git tag (e.g., when defining a pre-commit hook, or e.g., when aggregating versions of many linters and formatters like in super-linter).

related issue: https://github.com/super-linter/super-linter/issues/6826

Your Environment

• Mypy version used: v1.15.0
• Mypy command-line flags: --version
• Mypy configuration options from mypy.ini (and other config files): N/A
• Python version used: 3.12

Commencez par exécuter la commande signalée mypy --version et par suivre le point d’entrée de la CLI qui formate la sortie de version. Comparez le résultat avec le tag existant v1.15.0, puis vérifiez que la convention choisie est cohérente et couverte par une vérification appropriée de la sortie de version.