feat: add pyproject.toml for package installation support

[thecaptain789]

Summary

Adds a pyproject.toml to enable installation via standard Python package managers directly from Git sources.

Motivation

Currently, the project can only be used as a checked-out source tree. This PR enables:

# Install via uv
uv add git+https://github.com/Polymarket/agents.git

# Install via pip
pip install git+https://github.com/Polymarket/agents.git

# Install via poetry
poetry add git+https://github.com/Polymarket/agents.git

Changes

Added pyproject.toml with:

• Build system: setuptools with wheel support
• Core dependencies: Extracted key dependencies from requirements.txt with flexible version constraints
• Optional dev dependencies: pre-commit and pytest for development
• Python version: 3.9+ (as specified in README)
• Package discovery: Properly configured to find the agents module

Dependency Notes

The dependencies use minimum version constraints (e.g., >=0.2.0) rather than pinned versions from requirements.txt to:

• Allow consumers to use newer compatible versions
• Avoid unnecessary conflicts with other packages
• Follow standard library packaging practices

The original requirements.txt remains available for users who prefer exact pinned versions.

Testing

Verified that the package can be installed with:

pip install -e .

Related Issue

Fixes #38

---

Note

Low Risk
Packaging-only change that doesn’t alter runtime logic; main risk is dependency/version resolution differences for consumers due to >= constraints.

Overview
Adds a new pyproject.toml to make the repo installable as a standard Python package (setuptools/wheel build backend) with declared metadata and Python >=3.9 support.

Moves runtime requirements into the package definition as minimum-version dependencies, adds optional dev extras (pytest, pre-commit), and configures setuptools package discovery to include agents*.

^{Written by Cursor Bugbot for commit c0131a2. This will update automatically on new commits. Configure here.}

[github-actions]

Welcome to Polymarket Agents. Thank you for creating your first PR. Cheers!

[thecaptain789]

Good catch! Just pushed a fix adding scheduler>=0.8.7 to the dependencies list. Thanks for the review!

[cursor]

Cursor Bugbot has reviewed your changes and found 2 potential issues.

^{Bugbot Autofix is OFF. To automatically fix reported issues with Cloud Agents, enable Autofix in the Cursor dashboard.}

[cursor]

Package discovery fails without init.py files

High Severity

The [tool.setuptools.packages.find] configuration uses the default find_packages() behavior, which requires __init__.py files in each package directory. The agents directory and its subdirectories do not contain __init__.py files (the README even instructs users to set PYTHONPATH="." as a workaround). Without adding namespaces = true to enable PEP 420 implicit namespace package discovery, setuptools won't find any packages to include. The installation will succeed but the agents module won't be importable.

 

[cursor]

Missing httpx dependency in pyproject.toml

High Severity

The httpx library is imported and used in agents/polymarket/polymarket.py and agents/polymarket/gamma.py, but it's not listed in the dependencies array. Users who install the package will encounter ModuleNotFoundError: No module named 'httpx' when trying to use the Polymarket or GammaMarketClient classes.