Remove Hatch completely and replace with UV + setuptools

[Copilot]

This PR completely removes Hatch from the codecarbon repository and replaces it with UV for dependency management and setuptools for building, addressing the migration from Hatch to UV.

Key Changes

Build System Migration

• Updated pyproject.toml build system from hatchling to setuptools
• Removed all [tool.hatch.*] sections (environments, scripts, version, build targets)
• Added proper setuptools configuration for dynamic versioning and package discovery
• Updated conda recipe to use setuptools instead of hatchling

Dependency Management

• Generated new requirements.txt using uv export instead of hatch-pip-compile
• Generated new requirements/requirements-api.txt for Docker builds using UV
• Updated documentation to reflect UV-managed dependencies

CI/CD Fixes

• Fixed the externally managed Python issue: Updated GitHub workflows to use uv run python instead of uv pip install --system
• Updated both package.yml and python-publish.yml workflows
• Verified version checking works correctly with the new approach

Documentation Updates

• Updated all documentation files to replace hatch run commands with uv run
• Updated CONTRIBUTING.md, testing documentation, README files, and example scripts
• Fixed taskipy task syntax for ruff command

Verification

✅ All functionality preserved:

• Package builds successfully with uv build
• All tests pass: 118 tests passed with uv run task test-package
• CLI works correctly: uv run codecarbon --help and uv run codecarbon --version
• Code formatting works: uv run task format
• Version checking works: uv run python .github/check_version.py

✅ No breaking changes - All existing UV-based workflows continue to work as expected

✅ Complete Hatch removal - No remaining references to Hatch in the codebase (except in generated lock files)

The repository now uses UV as the sole package manager and build tool, resolving the GitHub Actions failure with externally managed Python environments.

Fixes #887.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• astral.sh
  • Triggering command: curl -LsSf REDACTED (dns block)
• get.geojs.io
  • Triggering command: /home/REDACTED/work/codecarbon/codecarbon/.venv/bin/python /home/REDACTED/work/codecarbon/codecarbon/.venv/bin/pytest --ignore=tests/test_viz_data.py -vv -m not integ_test tests/ (dns block)
• ip-api.com
  • Triggering command: /home/REDACTED/work/codecarbon/codecarbon/.venv/bin/python /home/REDACTED/work/codecarbon/codecarbon/.venv/bin/pytest --ignore=tests/test_viz_data.py -vv -m not integ_test tests/ (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to my firewall allow list

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[inimaz]

LGTM!