docs: def project_version(full_version):
      """
      project_version context manager
      """
  
      project_full_version=full_version
      v = _parse_project_version(full_version)
      name = project_name()
      project_fullname = '-'.join([name,v])
  
      return _setenv(project_full_version=project_full_version, project_version=v,project_name=name,project_fullname=project_fullname)