pytest-parallel
a pytest plugin for parallel and concurrent testing
Decision gist · record as of 2026-08-14
No. The package is abandoned (last release 2021-10-10, repository archived as of 2024-05-29) and offers no active maintenance or compatibility updates. For parallel testing, prefer pytest-xdist (actively maintained) or native pytest parallelization features. If you have an existing codebase using pytest-parallel, consider migrating to a maintained alternative.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Unix or Mac required for the --workers flag; --tests-per-worker works on Unix, Mac, or Windows.
- Python 3.6+ required.
- Installation is straightforward with low friction, but the package is abandoned as of 2024-05-29 with no recent maintenance.
License · maintenance · safety
MIT (permissive) — MIT is a permissive license with minimal restrictions—you can use, modify, and distribute the package freely in commercial or private projects as long as you include the license notice.
last release 2021-10-10 (1769 days) · last repo commit 2024-05-29 · 320 stars · archived
0 known vulnerabilities (OSV.dev, 2026-08-14) · 764,647 downloads/mo, #5,122 on PyPI
Alternatives
Verify before relying
pip install pytest-parallel
# In your test suite, run:
pytest --workers 2 --tests-per-worker 4- Whether the plugin remains compatible with modern pytest versions (last release was 2021-10-10).
- Real-world performance gains for your specific test suite compared to pytest-xdist or native pytest parallelization.
- Stability and edge cases with current Python 3.x versions, especially regarding multiprocessing behavior changes.
What it is and what it does
pytest-parallel is a pytest plugin that adds two execution modes: multiprocessing (via --workers) and multithreading (via --tests-per-worker), allowing you to run tests faster when they are thread-safe and use non-blocking I/O. It differs from pytest-xdist, which is better suited for tests that need process isolation or are not thread-safe; pytest-parallel targets scenarios like Selenium tests that manage little state and can benefit from concurrent execution within or across worker processes.
The plugin is configured via command-line flags: --workers sets the number of processes (defaulting to 1, or auto for one per core), and --tests-per-worker sets concurrent tests per worker (defaulting to 1, or auto for up to 50). However, the package has been abandoned since 2024-05-29, with the repository archived and no active maintenance, so compatibility with recent Python and pytest versions is uncertain.
Use it for
- Speed up Selenium test suites that are thread-safe and can run concurrently without state conflicts.
- Run I/O-bound tests (e.g., HTTP requests) concurrently within worker processes to reduce wall-clock time.
- Distribute test execution across multiple CPU cores on Unix/Mac systems using the --workers auto flag.
- Execute a fixed number of concurrent tests per worker on Windows systems using --tests-per-worker.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
The package is abandoned (last release 2021-10-10, repository archived as of 2024-05-29) and offers no active maintenance or compatibility updates. For parallel testing, prefer pytest-xdist (actively maintained) or native pytest parallelization features. If you have an existing codebase using pytest-parallel, consider migrating to a maintained alternative.
Install
pytest-parallel on PyPI
Before you install
Installation is straightforward with low friction, but the package is abandoned as of 2024-05-29 with no recent maintenance. The repository is archived, meaning no bug fixes or compatibility updates are forthcoming.
Unix or Mac required for the --workers flag; --tests-per-worker works on Unix, Mac, or Windows. Python 3.6+ required.
License in practice
MIT is a permissive license with minimal restrictions—you can use, modify, and distribute the package freely in commercial or private projects as long as you include the license notice.
Quickstart
pip install pytest-parallel
# In your test suite, run:
pytest --workers 2 --tests-per-worker 4Verify before relying
- Whether the plugin remains compatible with modern pytest versions (last release was 2021-10-10).
- Real-world performance gains for your specific test suite compared to pytest-xdist or native pytest parallelization.
- Stability and edge cases with current Python 3.x versions, especially regarding multiprocessing behavior changes.
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagespytesttblib |
| Maintenance | Abandoned 1,769 days since the last release |
| Last repo commit | repository archived |
| First released | |
| Downloads | 764,647 / month, #5,122 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 3 - AlphaFramework :: PytestIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: MacOS :: MacOS XOperating System :: Microsoft :: WindowsOperating System :: POSIXProgramming Language :: Python :: 3Programming Language :: Python :: 3.6Topic :: Software Development :: Quality AssuranceTopic :: Software Development :: TestingTopic :: Utilities |
Evidence: pytest_parallel-0.1.1-py3-none-any.whl
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See also pytest-xdist · concurrencytest · pytest-shard · pypeln · pytest-circleci-parallelized · pytest-odoo · pytest-asyncio-concurrent · pytest-forked · pytest_tagging · pytest-cpp