pytest-dev/pytest-asyncio

Health v2 · maintenance only

Adoption not part of the score

1657 stars · 199 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A pytest plugin that enables testing of asyncio-based Python code by supporting coroutines as test functions. It lets developers write async test functions with the @pytest.mark.asyncio marker and await code directly inside tests.

Use cases

• test async python functions with pytest
• run coroutine test functions in pytest
• await async code inside unit tests
• test asyncio-based libraries
• write async test cases for python web services

When to choose

• you use pytest and need to test asyncio coroutines
• your python codebase uses async/await and you want idiomatic pytest tests
• you want a lightweight plugin rather than a separate async test framework

When to avoid

• your tests subclass unittest.TestCase - use unittest.IsolatedAsyncioTestCase instead
• you don't use pytest as your test runner
• you need to test other async frameworks like trio (use trio's pytest plugin)

Facets

plugin · maturity stable

testing e2e-testing testing developer-tools python cli pytest-plugin asyncio coroutines unit-testing

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