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