pkg_resources.py 1.1 KB

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  1. from typing import Dict, Iterable, List
  2. from pip._vendor.pkg_resources import yield_lines
  3. class DictMetadata:
  4. """IMetadataProvider that reads metadata files from a dictionary."""
  5. def __init__(self, metadata):
  6. # type: (Dict[str, bytes]) -> None
  7. self._metadata = metadata
  8. def has_metadata(self, name):
  9. # type: (str) -> bool
  10. return name in self._metadata
  11. def get_metadata(self, name):
  12. # type: (str) -> str
  13. try:
  14. return self._metadata[name].decode()
  15. except UnicodeDecodeError as e:
  16. # Mirrors handling done in pkg_resources.NullProvider.
  17. e.reason += f" in {name} file"
  18. raise
  19. def get_metadata_lines(self, name):
  20. # type: (str) -> Iterable[str]
  21. return yield_lines(self.get_metadata(name))
  22. def metadata_isdir(self, name):
  23. # type: (str) -> bool
  24. return False
  25. def metadata_listdir(self, name):
  26. # type: (str) -> List[str]
  27. return []
  28. def run_script(self, script_name, namespace):
  29. # type: (str, str) -> None
  30. pass