tryke

Tryke is a fast Python test runner with zero runtime dependencies, per-assertion diagnostics, and a clean decorator-based API.

Highlights

• Watch mode
• Native async support
• Fast test discovery
• In-source testing
• Support for doctests
• Client/server mode for fast editor integrations
• Pretty, per-assertion diagnostics
• Filtering and marks
• Changed mode (like pytest-picked)
• Concurrent tests
• Soft assertions
• JSON, JUnit, Dot, and LLM reporters

Getting started

Write a test.

from tryke import expect, test, describe


def add(a: int, b: int) -> int:
    return a + b


with describe("add"):

    @test("1 + 1")
    def test_basic():
        expect(1 + 1).to_equal(2)

Run your tests.

uvx tryke test

Installation

See the installation documentation.