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CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

awesome-quant is a curated list of quantitative finance libraries, packages, and resources. The primary content lives in README.md — a large markdown file organized by category (Numerical Libraries, Trading & Backtesting, Market Data, etc.) with inline language tags that identify which programming languages each project supports.

A companion website is generated from this data and deployed to GitHub Pages.

Architecture

The pipeline works as follows:

  1. README.md — The source of truth. All library entries follow the format: - [name](url) - \Language` - Description.`

    • Entries are grouped under category headings (##), not language headings
    • Language is identified via inline backtick tags (e.g., `Python`, `Rust`) in the description
    • Multi-language projects have multiple tags (e.g., `Python` `Rust`)

  2. parse.py — Parses README.md, extracts language from backtick tags, fetches last commit dates and stars via the GitHub API (using PyGithub with multithreading), and writes site/projects.csv with a languages column (comma-separated).

  3. site/generate.py — Reads projects.csv (or parses README.md directly) and generates a static HTML site with search, filtering by language/category/source, sorting, and dark mode.

  4. CI (.github/workflows/build.yml) — Runs daily and on push to main: runs parse.py, runs site/generate.py, and deploys to GitHub Pages via gh-pages branch.

Supporting scripts:

  • cranscrape.py — Scrapes CRAN package pages to find associated GitHub repos; writes cran.csv.
  • topic.py — Searches GitHub for repos tagged with a topic (e.g., "quant") above a star threshold.

Commands

# Install dependencies (uses uv, requires Python 3.11+)
uv sync --no-install-project

# Run the parser (requires GITHUB_ACCESS_TOKEN env var)
GITHUB_ACCESS_TOKEN=<token> uv run python parse.py

# Generate the static site
uv run python site/generate.py

Contributing Entries

See CONTRIBUTING.md for full guidelines. All entries must include language tags:

- [Project Name](https://github.com/owner/repo) - `Python` - Description ending with a period.
- [Project Name](https://github.com/owner/repo) - `Python` `Rust` - Multi-language project description.
- [Project Name](https://site.com) - `Python` - Description ending with a period. [GitHub](https://github.com/owner/repo)
- [Package Name](https://cran.r-project.org/package=pkg) - `R` - Description ending with a period.
- [package-name](https://pypi.org/project/pkg/) - `Python` - Description ending with a period.

CRAN and PyPI entries may optionally append [GitHub](url) after the description.

Entries are grouped under category headings (##), not language headings. Language is identified via inline backtick tags. Commercial/proprietary projects go under ## Commercial & Proprietary Services.

parse.py and site/generate.py rely on this regex to extract entries: ^\s*- \[(.*)\]\((.*)\) - (.*)$

The description text (group 3) may start with language tags in the format `Language1` `Language2` - followed by the actual description.