docs: def _info(self, args):
          '''
          List info for a package
          '''
          if len(args) < 2:
              raise SPMInvocationError('A package must be specified')
  
          package = args[1]
  
          pkg_info = self._pkgdb_fun('info', package, self.db_conn)
          if pkg_info is None:
              raise SPMPackageError('package {0} not installed'.format(package))
          self.ui.status(self._get_info(pkg_info))