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mcore-linting-and-formatting

Check and format Python code in Megatron-LM using autoformat.sh and its linting tools. Apply project rules for imports, type hints, documentation, naming, and line length when preparing changes for a pull request.

中文简介正在准备中。当前显示英语简介。

原文查看原文说明

Linting and formatting for Megatron-LM. Covers running autoformat.sh, tools (ruff, black, isort, pylint, mypy), and code style rules.

查看安装方法

适用场景

  • Check code style before opening a pull request
  • Run automatic formatting fixes
  • Sort imports after editing Python files
  • Resolve linting errors and review style rules

包含的文件(5)

  • SKILL.md1.6 KB
  • BENCHMARK.md2.8 KB
  • evals/evals.json3 B
  • skill-card.md2.5 KB
  • skill.oms.sig4.5 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

Linting and Formatting


Running the Formatter

Run before opening a PR:

# Check mode (no changes applied)
BASE_REF=main CHECK_ONLY=true SKIP_DOCS=false bash tools/autoformat.sh

# Fix mode
BASE_REF=main CHECK_ONLY=false bash tools/autoformat.sh

Tools invoked: black, isort, pylint, ruff, mypy.


Import Ordering

After editing imports in any Python files, always run uv run isort on those files before committing:

uv run isort <file1>.py <file2>.py

Setting Up the Linting Group

Inside the container:

uv sync --locked --only-group linting

This installs ruff, black, isort, pylint — the same tools used by tools/autoformat.sh and CI's linting job.


Code Style Rules

  • Type hints: required on all public API functions. Use X | None, not Optional[X].
  • Docstrings: Google-style on all public classes and functions.
  • Naming: follow Python conventions — snake_case for functions and variables, PascalCase for classes.
  • Line length: 119 characters (configured in pyproject.toml).
  • No bare except: always catch specific exception types.

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