pytest-flakefinder
Runs tests multiple times to expose flakiness.
Decision gist · record as of 2026-08-14
No. While the plugin is simple and has low install friction, it is abandoned (last release 2022-10-26, 1388 days ago) with no active maintenance. Compatibility with recent pytest versions is unverified, and no security or bug fixes are forthcoming. For detecting test flakiness, consider actively maintained alternatives or running tests multiple times via CI orchestration instead.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires pytest to be installed; plugin is activated via command-line flags only.
- Low install friction with a single runtime dependency on pytest.
- However, the package is abandoned—last release was 2022-10-26, over 1388 days ago.
License · maintenance · safety
Apache (permissive) — Licensed under Apache (permissive), which allows commercial and private use with minimal restrictions. No licensing barrier to adoption.
last release 2022-10-26 (1388 days) · last repo commit 2022-10-26 · 157 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 2,065,167 downloads/mo, #3,328 on PyPI
Alternatives
Verify before relying
pip install pytest-flakefinder
pytest --flake-finder
# Or with custom run count:
pytest --flake-finder --flake-runs=50- Whether the plugin remains compatible with recent pytest versions given the 1388-day gap since last release.
- Whether timeout functionality (--flake-max-minutes) works reliably in modern pytest environments.
- Performance characteristics when running tests many times on large test suites.
What it is and what it does
pytest-flakefinder is a pytest plugin that multiplies test execution—running each test multiple times (default 50 times) in a single pytest session to expose intermittent failures and timing-related flakiness. Rather than restarting pytest between runs, it repeats tests within the same session, making it practical to detect unreliable tests that pass inconsistently. The plugin integrates with pytest's test selection (e.g., -k flags) so you can target specific tests, and pairs well with pytest-xdist to distribute repeated runs across multiple processes.
The package depends only on pytest and offers two main controls: --flake-runs to set repetition count and --flake-max-minutes to cap total runtime in CI environments. It was developed at Dropbox and generated from a pytest plugin template, but has been abandoned since October 2022 with no active maintenance.
Use it for
- Detect race conditions and timing bugs in test suites by running tests repeatedly in parallel with pytest-xdist.
- Validate test reliability before merging to main branch by running the full suite multiple times in CI.
- Isolate flaky tests in a large suite by using pytest's -k selection with --flake-finder on suspected tests.
- Enforce test stability in projects with strict reliability requirements by running critical tests many times.
- Debug intermittent failures in integration tests that depend on external services or timing.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
While the plugin is simple and has low install friction, it is abandoned (last release 2022-10-26, 1388 days ago) with no active maintenance. Compatibility with recent pytest versions is unverified, and no security or bug fixes are forthcoming. For detecting test flakiness, consider actively maintained alternatives or running tests multiple times via CI orchestration instead.
Install
pytest-flakefinder on PyPI
Before you install
Low install friction with a single runtime dependency on pytest. However, the package is abandoned—last release was 2022-10-26, over 1388 days ago. No active maintenance or security updates are being provided.
Requires pytest to be installed; plugin is activated via command-line flags only.
License in practice
Licensed under Apache (permissive), which allows commercial and private use with minimal restrictions. No licensing barrier to adoption.
Quickstart
pip install pytest-flakefinder
pytest --flake-finder
# Or with custom run count:
pytest --flake-finder --flake-runs=50Verify before relying
- Whether the plugin remains compatible with recent pytest versions given the 1388-day gap since last release.
- Whether timeout functionality (--flake-max-minutes) works reliably in modern pytest environments.
- Performance characteristics when running tests many times on large test suites.
Package facts
| License | Apache permissive |
| Python support | Supports the current Python release >=3.5 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagepytest |
| Maintenance | Abandoned 1,388 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 2,065,167 / month, #3,328 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyTopic :: Software Development :: Testing |
Evidence: pytest_flakefinder-1.1.0-py2.py3-none-any.whl
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