hoimin
hoimin is a mutation-testing CLI for Python. It makes small changes to copies of your source and runs your tests to find behavior they do not check.
Install
uv tool install --python 3.14 hoimin
Wheels require Python 3.14 and support macOS Apple Silicon, Linux x86_64
(glibc), and Windows x86_64. Run uv tool update-shell if hoimin is not on
PATH, then open a new shell.
Quick start
From your project directory, use a Python environment with your test dependencies
installed. Replace src/calc.py with the file you want to check:
hoimin run --root . --file src/calc.py --allow-best-effort-memory --format human -- python -m pytest -q
Everything after -- is your project's test command. hoimin runs it once as a
baseline, then for each selected mutation. Inspect surviving mutations to find
missing assertions or test cases. --allow-best-effort-memory permits execution
on macOS and Linux without delegated cgroup limits; see the
resource limits.
See the usage reference
for selectors, plan/verify workflows, reports, and configuration, or run hoimin --help.
For contributing, see development
and building and releases.
Licensed under Elastic License 2.0. See licensing details.
1 maintainer
Metadata
1 maintainer
Release files for hoimin 0.3.4
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Built distributions (wheels)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| hoimin-0.3.4-py3-none-win_amd64.whl | Python 3 | none | Windows x86-64 | Details |
| hoimin-0.3.4-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl | Python 3 | none | Linux glibc 2.17+ x86-64 | Details |
| hoimin-0.3.4-py3-none-macosx_11_0_arm64.whl | Python 3 | none | macOS 11.0+ ARM64 | Details |
Total release size: 19.0 MB
Release files / hoimin-0.3.4-py3-none-win_amd64.whl
| Download URL | hoimin-0.3.4-py3-none-win_amd64.whl |
|---|---|
| Size | 6.5 MB |
| Tags | Python 3 Windows x86-64 |
|
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Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
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Transparency logRelease files / hoimin-0.3.4-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
| Download URL | hoimin-0.3.4-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl |
|---|---|
| Size | 6.5 MB |
| Tags | Linux glibc 2.17+ x86-64 Python 3 |
|
SHA-256 checksum How to use checksums |
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| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
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PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 10, 2026.
Transparency logRelease files / hoimin-0.3.4-py3-none-macosx_11_0_arm64.whl
| Download URL | hoimin-0.3.4-py3-none-macosx_11_0_arm64.whl |
|---|---|
| Size | 5.9 MB |
| Tags | Python 3 macOS 11.0+ ARM64 |
|
SHA-256 checksum How to use checksums |
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| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
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Signed by GitHub Actions, verified by PyPI on Oct 10, 2026.
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