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https://github.com/harvard-edge/cs249r_book.git
synced 2026-07-21 17:57:24 -05:00
Vijay Janapa Reddi
9c91cc5e4a
marimo's html-wasm export bundles only the notebook .py file. The shared labs/bootstrap.py is not available in the Pyodide virtual filesystem, so `from bootstrap import setup_lab` fails with ModuleNotFoundError on every lab in the browser smoke test. WASM bootstrapping is inherently inline work: you cannot import a module to install the modules it needs. Each lab's Cell 0 now handles the two paths directly: - emscripten: micropip.install the runtime packages + wheel - native: bootstrap.native_bootstrap() for sys.path setup bootstrap.py is simplified to native-only (the WASM path in setup_lab was unreachable and its wheel_relpath() would also have failed reading pyproject.toml from the virtual filesystem). The existing test_static.py wheel-version consistency test still catches drift: it reads the version from pyproject.toml and asserts the inline micropip URL matches across all 33 labs.
25 lines
752 B
Python
25 lines
752 B
Python
"""Native-only bootstrap for Marimo co-labs (not part of the mlsysim wheel).
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WASM bootstrap (micropip.install) is handled inline in each lab's Cell 0
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because marimo's html-wasm export bundles only the notebook .py file —
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bootstrap.py is not available in the Pyodide virtual filesystem.
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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def _repo_root(lab_file: str) -> Path:
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return Path(lab_file).resolve().parents[2]
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def native_bootstrap(lab_file: str) -> None:
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"""Add repo root to sys.path for editable/local mlsysim imports."""
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if sys.platform == "emscripten" or "mlsysim" in sys.modules:
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return
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root = str(_repo_root(lab_file))
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if root not in sys.path:
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sys.path.insert(0, root)
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