Don't include Home-page with UNKNOWN value

[cdce8p]

Summary of changes

Similar to Download-URL, Home-page is handled as an optional field by PyPI. No need to include it in the package metadata if it's unknown. This will better support packages which choose to specify all urls inside project_urls.

pypa/warehouse - forklift/legacy.py

Reading a missing field is also not an issue. msg[field] will return None in these cases.

setuptools/setuptools/dist.py

Lines 71 to 76 in d3124ac

	def _read_field_from_msg(msg: "Message", field: str) -> Optional[str]:
	"""Read Message header field."""
	value = msg[field]
	if value == 'UNKNOWN':
	return None
	return value

Pull Request Checklist

• Changes have tests
• News fragment added in changelog.d/.
  (See documentation for details)