class_docstr: Handles metadata supplied in configuration files.
class_docstr_tok: ["Handles","metadata","supplied","in","configuration","files","."]
code: def _section_options(cls, options: AllCommandOptions):
      for full_name, value in options.items():
          pre, sep, name = full_name.partition(cls.section_prefix)
          if pre:
              continue
          yield name.lstrip("."), value
  
imports: import contextlib
  import functools
  import os
  from collections import defaultdict
  from functools import partial
  from functools import wraps
  from typing import TYPE_CHECKING, Callable, Any, Dict, Generic, Iterable, List, Optional, Set, Tuple, TypeVar, Union
  from ..errors import FileError, OptionError
  from ..extern.packaging.markers import default_environment
  from ..extern.packaging.requirements import InvalidRequirement, Requirement
  from ..extern.packaging.specifiers import SpecifierSet
  from ..extern.packaging.version import InvalidVersion, Version
  from ..warnings import SetuptoolsDeprecationWarning
  from .None import expand
label_desc: Use image node_id 2 for calling the ConfigHandler obj's underlying member method code with example usage: obj._section_options(cls, options) without return types