poetry_requirements does not handle allow-prereleases field

[wilsonliam]

allow-prereleases field ignored when parsing dictionary attributes:

pants/src/python/pants/backend/python/macros/poetry_requirements.py

Lines 112 to 132 in 2a496aa

	def handle_dict_attr(proj_name: str, attributes: dict[str, str], fp: str) -> str:
	def produce_match(sep: str, feat: Optional[str]) -> str:
	return f"{sep}{feat}" if feat else ""
	git_lookup = attributes.get("git")
	if git_lookup is not None:
	rev_lookup = produce_match("#", attributes.get("rev"))
	branch_lookup = produce_match("@", attributes.get("branch"))
	tag_lookup = produce_match("@", attributes.get("tag"))
	return f"{proj_name} @ git+{git_lookup}{tag_lookup}{branch_lookup}{rev_lookup}"
	version_lookup = attributes.get("version")
	path_lookup = attributes.get("path")
	if path_lookup is not None:
	return f"{proj_name} @ file://{path_lookup}"
	url_lookup = attributes.get("url")
	if url_lookup is not None:
	return f"{proj_name} @ {url_lookup}"
	if version_lookup is not None:
	markers_lookup = produce_match(";", attributes.get("markers"))

[wilsonliam]

After trying some hacky workarounds with limited testing success, I feel like this is best left to be resolved once pip options are usable (cf. #12327); specifically the pip --pre flag.

[thejcannon]

@Eric-Arellano Where should we stand on this, now that we have a "native" lockfile which is better than Poetry's?

[Eric-Arellano]

Still useful probably - this is intended for the poetry_requirements target generator, which parses pyproject.toml and ignores poetry.lock