pytest
Metrics as of , from the GitHub or GitLab API of each repository. Refreshed monthly.
What pytest is
pytest is a Python testing framework for small unit tests and complex functional tests of applications and libraries. Tests use plain assert statements, and failures report detailed introspection of the asserted values. It discovers test modules and functions automatically. Modular fixtures manage small or parametrized long-lived test resources. It can run unittest and trial suites without changes. It requires Python 3.10 or later, or PyPy3. A plugin architecture supports external plugins listed in the documentation. Tests run from the command line with the pytest command.
Written from the project's README, read .
- Category
- Unit testing and test runners
- License
- MIT
- Language
- Python
- Changelog
- Releases on GitHub
Repository metrics
Status
activeLast commit within 90 days of the fetch date.Computed from the last commit date and the archive flag on the fetch date. See the status rules.
Alternatives
Listed unit testing and test runners tools, same primary language first, then by GitHub stars. Each line gives one fact from the tool's documentation where it differs from pytest's, with its source.
Hypothesis: Languages for writing tests: Python. source: README
Jest: Languages for writing tests: JavaScript; TypeScript via Babel or ts-jest. source: README
GoogleTest: Languages for writing tests: C++ (the 1.18.x branch requires C++17). source: README
Testify: Languages for writing tests: Go. source: README
Mocha: Languages for writing tests: JavaScript; TypeScript through Node.js type stripping or a loader such as tsx. source: Docs: TypeScript
Catch2: Languages for writing tests: C++. source: README
AVA: Languages for writing tests: JavaScript on Node.js; TypeScript definitions included. source: README
PHPUnit: Languages for writing tests: PHP. source: README
Comparisons
Questions
Is pytest open source?
Yes. pytest is released under MIT, an OSI-approved license, as reported by the GitHub API on 2026-09-22.
Is pytest maintained?
On 2026-09-22, the last commit to the default branch was on 2026-09-21, so the listed status is active. Rule: Last commit within 90 days of the fetch date.
How many GitHub stars does pytest have?
14,521 stars on 2026-09-22, from the GitHub API. The number is refreshed at each monthly update.
What language is pytest written in?
The repository's primary language, as reported by the GitHub API, is Python.
Sources
- GitHub REST API: repository, read
- GitHub REST API: commits, read
- GitHub REST API: latest release, read
- GitHub REST API: contributors, read
- README, read