class_docstr: Handles metadata supplied in configuration files.
class_docstr_tok: ["Handles","metadata","supplied","in","configuration","files","."]
code: def _assert_local(filepath):
      if not filepath.startswith(os.getcwd()):
          raise DistutilsOptionError(
              "`file:` directive can not access %s" % filepath
          )
  
imports: from __future__ import absolute_import, unicode_literals
  import io
  import os
  import sys
  import warnings
  import functools
  from collections import defaultdict
  from functools import partial
  from functools import wraps
  from importlib import import_module
  from distutils.errors import DistutilsOptionError, DistutilsFileError
  from setuptools.extern.packaging.version import LegacyVersion, parse
  from setuptools.extern.packaging.specifiers import SpecifierSet
  from setuptools.extern.six import string_types, PY3
label_desc: Use image node_id 9 for calling the ConfigHandler obj's underlying member method code with example usage: obj._assert_local(filepath) without return types