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How do you read TOML with tomllib in Python 3.11+?

Q: How do you read TOML with tomllib in Python 3.11+?

`tomllib` (3.11, PEP 680) parses TOML from binary files via `tomllib.load(f)`; it is read-only — write with `tomli-w` if needed. tomllib: stdlib read tomli-w: write | | tomllib (stdlib) | tomli / tomli-w | toml (legacy) | |---|---|---| | Read | `tomllib.load(fb)` | `tomli.load(fb)` | `toml.load(f)` | | Write | Not supported | `tomli_w.dump(obj, fb)` | `toml.dump(obj, f)` | | Mode | Binary `rb` | Binary | Text | | Since | 3.11 | Backport for <3.11 | Pre-PEP 680 | Perfect for reading `pyproject.toml` / `uv.lock` metada

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stdlib TOML parsing for pyproject.toml without third-party deps.

tomllibconfigpython3.11

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tomllib (3.11, PEP 680) parses TOML from binary files via tomllib.load(f); it is read-only — write with tomli-w if needed.

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