code: def _grab_version(self):
          
          original_version = self.vcs.version
          logger.debug("Extracted version: %s", original_version)
          if original_version is None:
              logger.critical('No version found.')
              sys.exit(1)
          suggestion = utils.cleanup_version(original_version)
          new_version = utils.ask_version("Enter version", default=suggestion)
          if not new_version:
              new_version = suggestion
          self.data['original_version'] = original_version
          self.data['new_version'] = new_version
docs: Set the version to a non-development version.