| 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 |
