from pip._vendor.pkg_resources import yield_lines from pip._vendor.six import ensure_str from pip._internal.utils.typing import MYPY_CHECK_RUNNING if MYPY_CHECK_RUNNING: from typing import Dict, Iterable, List class DictMetadata(object): """IMetadataProvider that reads metadata files from a dictionary. """ def __init__(self, metadata): # type: (Dict[str, bytes]) -> None self._metadata = metadata def has_metadata(self, name): # type: (str) -> bool return name in self._metadata def get_metadata(self, name): # type: (str) -> str try: return ensure_str(self._metadata[name]) except UnicodeDecodeError as e: # Mirrors handling done in pkg_resources.NullProvider. e.reason += " in {} file".format(name) raise def get_metadata_lines(self, name): # type: (str) -> Iterable[str] return yield_lines(self.get_metadata(name)) def metadata_isdir(self, name): # type: (str) -> bool return False def metadata_listdir(self, name): # type: (str) -> List[str] return [] def run_script(self, script_name, namespace): # type: (str, str) -> None pass