astropy
Astropy provides a core Python package for astronomy and an ecosystem of affiliated packages.
About astropy
Astropy is a community project that develops a common core Python package for astronomy and supports an ecosystem of affiliated packages. The core package can be installed with pip, and the homepage notes that it is also available through other package managers. An installation guide covers creating a Python environment, installing with pip or conda, building from source, requirements, and testing.
The site links to tutorials and documentation for learning the package's functionality, several forums for questions, and the GitHub issue tracker for bug reports. Users who rely on Astropy in papers or presentations are asked to acknowledge and cite it. Donations are handled through the fiscal sponsor NumFOCUS.
Key features
- Core Python package for astronomy, installable with pip
- Installation guide covering environments, pip or conda, source builds, and testing
- Tutorials and documentation for learning Astropy functionality
- Several community forums for questions about using Astropy
- GitHub issue tracker for reporting bugs and errors
- Zenodo community for archiving talks and meeting notes
Best for: Python users working in astronomy who need a shared core package and a community for questions and contributions.
Good for
- Several installation routes, including pip, conda, other package managers, and building from source
- Multiple forums and a GitHub issue tracker for questions and bug reports
- Project support is channeled through the fiscal sponsor NumFOCUS
Watch out for
- Users are asked to acknowledge and cite Astropy in papers and presentations
astropy at a glance
- Website
- astropy.org
- Category
- Development › Developer Tools
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Developer Tools
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astropy FAQ
How do I install Astropy?
The homepage says that if you use pip, you can run: pip install astropy[recommended] --upgrade. The core package is also available in other package managers, and an installation guide gives further details.
Where should I report a bug?
The homepage recommends reporting bugs on the GitHub issue tracker. If you are unsure whether something is a bug or do not have a GitHub account, you can ask on one of the forums.
How can I financially support Astropy?
You can donate one-time or on a recurring basis through the fiscal sponsor NumFOCUS. Apparel and other items are also sold through the NumFOCUS shop, with a portion of profits supporting the project.
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