# License

## MIT License

GWexpy is licensed under the **MIT License**, a permissive open-source license that allows you to:

✓ Use the software for any purpose (commercial, academic, personal)  
✓ Modify and distribute the software  
✓ Sublicense the software  

**Conditions:**  
- Include a copy of the license and copyright notice
- The software is provided "as is" without warranty

## Full License Text

The complete license text is available in the repository:

[**LICENSE.txt**](https://github.com/tatsuki-washimi/gwexpy/blob/main/LICENSE.txt)

## Why MIT?

The MIT License was chosen for GWexpy because it:

1. **Encourages adoption** - Permissive license removes barriers to use
2. **Supports collaboration** - Derived works can use different licenses
3. **Academic-friendly** - Widely used in research software
4. **Commercial-friendly** - Allows proprietary derivatives

## Third-Party Licenses

GWexpy depends on open-source software with the following licenses:

| Package | License |
|---------|---------|
| NumPy | BSD |
| SciPy | BSD |
| Pandas | BSD |
| Matplotlib | PSF |
| GWpy | GPL-3.0+ |
| Astropy | BSD |

For the complete list of dependencies and their licenses, run:

```bash
pip show gwexpy
# or for detailed info:
pip-licenses
```

## Contributing

By contributing to GWexpy, you agree that your contributions will be licensed under the same MIT License. See [CONTRIBUTING.md](https://github.com/tatsuki-washimi/gwexpy/blob/main/CONTRIBUTING.md) for details.

## Questions?

If you have questions about licensing, feel free to open an issue on [GitHub Issues](https://github.com/tatsuki-washimi/gwexpy/issues).