| """MMK12 importer — math-only multiple-choice training rows. |
| |
| All 15,616 public MMK12 ``train`` rows are ``subject=math``; the importer asserts |
| that invariant row-by-row. A non-math row is treated as source revision drift |
| (a hard :class:`IngestError`), never silently kept or relabeled. Only ``train`` |
| is ingested; the 2,000-row source ``test`` split never enters training |
| (``docs/01_RESOURCE_CATALOG.md`` §3.1). |
| """ |
|
|
| from __future__ import annotations |
|
|
| from collections.abc import Mapping |
| from typing import Any |
|
|
| from .base import ( |
| Choice, |
| ImageResolver, |
| ImageStore, |
| IngestError, |
| NormalizedItem, |
| Policy, |
| canonicalize_mc_answer, |
| make_item, |
| mc_choices, |
| ) |
|
|
| NAME = "mmk12" |
| POLICY: Policy = "c2_train_candidate" |
| LICENSE_GATE = "mmk12_license" |
| ALLOWED_SPLIT = "train" |
| REQUIRED_SUBJECT = "math" |
|
|
|
|
| def normalize( |
| row: Mapping[str, Any], |
| images: ImageStore, |
| resolve: ImageResolver, |
| *, |
| revision: str, |
| split: str, |
| config: str = "default", |
| ) -> NormalizedItem: |
| """Normalize one MMK12 native row to a :class:`NormalizedItem`.""" |
| if split != ALLOWED_SPLIT: |
| raise IngestError(f"mmk12: only split {ALLOWED_SPLIT!r} may be ingested, got {split!r}") |
| subject = str(row.get("subject", "")).strip() |
| if subject != REQUIRED_SUBJECT: |
| raise IngestError( |
| f"mmk12: row {row.get('index', '?')!r} subject is {subject!r}, expected " |
| f"{REQUIRED_SUBJECT!r} — source revision drift" |
| ) |
| question = str(row["question"]) |
| option_texts = [str(o) for o in row["options"]] |
| choices: list[Choice] = mc_choices(option_texts) |
| answer_raw = str(row["answer"]) |
| answer_canonical = canonicalize_mc_answer(answer_raw, choices) |
| image_ref = str(row["image"]) |
| rel, digest = images.store(resolve(image_ref)) |
| native_id = str(row.get("index", row.get("id"))) |
| return make_item( |
| source=NAME, |
| source_revision=revision, |
| source_config=config, |
| source_split=split, |
| source_native_id=native_id, |
| question=question, |
| choices=choices, |
| answer_raw=answer_raw, |
| answer_canonical=answer_canonical, |
| answer_type="multiple_choice", |
| image_paths=(rel,), |
| image_sha256=(digest,), |
| policy=POLICY, |
| native_row=row, |
| subject=subject, |
| license_gate=LICENSE_GATE, |
| ) |
|
|
