Package list

Packages for testing

Python packages for writing and running tests, from test frameworks to mocking and code coverage.

Package	Comment	Downloads/day	Recent releases ⓘ	GitHub Stars
pytest	The most popular Python testing framework, with a simple syntax and a rich plugin ecosystem.	18.2M	7	·
hypothesis	Property-based testing library that generates test cases automatically from defined strategies.	875K	144	·
coverage	Measures code coverage during test execution and produces detailed reports.	6.7M	26	·
pytest-cov	pytest plugin that integrates coverage.py for measuring code coverage in pytest runs.	4.7M	3	·
pytest-mock	pytest plugin that provides a mocker fixture wrapping unittest.mock.	2.4M	2	·
pytest-asyncio	pytest plugin for testing async/await code with asyncio.	4.5M	7	·
faker	Generates realistic fake data (names, addresses, emails, etc.) for use in tests and fixtures.	1.8M	62	·
factory-boy	A fixtures replacement based on factory patterns, for generating test objects with sensible defaults.	563K	0	·
responses	A utility for mocking the Python requests library in tests.	1.6M	4	·
freezegun	Allows tests to mock the current date and time by patching datetime objects.	1.2M	1	·
tox	Test automation tool for running tests across multiple Python environments.	1.0M	55	·
nox	A flexible test automation tool using Python scripts instead of INI config, similar to tox.	163K	6	·

Package	Comment	Downloads/day	Recent releases ⓘ	GitHub Stars
pytest	The most popular Python testing framework, with a simple syntax and a rich plugin ecosystem.	18.2M	7	14,334·
hypothesis	Property-based testing library that generates test cases automatically from defined strategies.	875K	144	5,969·
coverage	Measures code coverage during test execution and produces detailed reports.	6.7M	26	32·
pytest-cov	pytest plugin that integrates coverage.py for measuring code coverage in pytest runs.	4.7M	3	1,931·
pytest-mock	pytest plugin that provides a mocker fixture wrapping unittest.mock.	2.4M	2	2,006·
pytest-asyncio	pytest plugin for testing async/await code with asyncio.	4.5M	7	1,606·
faker	Generates realistic fake data (names, addresses, emails, etc.) for use in tests and fixtures.	1.8M	62	20,078·
factory-boy	A fixtures replacement based on factory patterns, for generating test objects with sensible defaults.	563K	0	2,892·
responses	A utility for mocking the Python requests library in tests.	1.6M	4	3,600·
freezegun	Allows tests to mock the current date and time by patching datetime objects.	1.2M	1	4,555·
tox	Test automation tool for running tests across multiple Python environments.	1.0M	55	4,060·
nox	A flexible test automation tool using Python scripts instead of INI config, similar to tox.	163K	6	723·