murmurhash
Cython bindings for MurmurHash
Decision gist · record as of 2026-08-14
Yes. murmurhash is a stable, actively maintained library with no known vulnerabilities, permissive licensing, and broad platform support. Install it if you need fast non-cryptographic hashing; skip it if you require cryptographic guarantees or are satisfied with Python's built-in hash().AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Medium install friction due to compiled wheels, but well-supported across Python 3.6–3.14 and major platforms (macOS, Linux, Windows, ARM).
- Active maintenance with a recent commit on 2026-03-27.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute this package freely with minimal restrictions.
last release 2025-11-14 (273 days) · last repo commit 2026-03-27 · 47 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 22,304,956 downloads/mo, #977 on PyPI
Alternatives
Verify before relying
pip install murmurhash
from murmurhash.mrmr import hash64
result = hash64(b'example', seed=0)
print(result)- Whether the hash output is suitable for cryptographic purposes or only for non-cryptographic use cases like hash tables.
- Performance benchmarks compared to Python's built-in hash() or other hashing libraries in typical workloads.
What it is and what it does
murmurhash is a Cython wrapper around the MurmurHash2 algorithm, a non-cryptographic hash function optimized for speed and distribution quality. It exposes MurmurHash2 hashing to Python with minimal overhead by compiling critical code paths to C via Cython. The package has no runtime dependencies and supports Python 3.6 through 3.14 across macOS, Linux, Windows, and ARM architectures.
Typical use cases include building hash tables, implementing bloom filters, or any scenario where you need fast, non-cryptographic hashing of strings or binary data. The library is actively maintained and widely used in data processing pipelines where hashing performance matters.
Use it for
- Hash table and dictionary implementations where speed matters more than cryptographic security.
- Bloom filter construction for membership testing in memory-constrained environments.
- Distributing data across buckets in parallel processing or sharding systems.
- Feature hashing in machine learning pipelines for dimensionality reduction.
- Deduplication of records or strings in data processing workflows.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
murmurhash is a stable, actively maintained library with no known vulnerabilities, permissive licensing, and broad platform support. Install it if you need fast non-cryptographic hashing; skip it if you require cryptographic guarantees or are satisfied with Python's built-in hash().
Install
murmurhash on PyPI
Before you install
Medium install friction due to compiled wheels, but well-supported across Python 3.6–3.14 and major platforms (macOS, Linux, Windows, ARM). Active maintenance with a recent commit on 2026-03-27.
License in practice
MIT license is permissive; you can use, modify, and distribute this package freely with minimal restrictions.
Quickstart
pip install murmurhash
from murmurhash.mrmr import hash64
result = hash64(b'example', seed=0)
print(result)Verify before relying
- Whether the hash output is suitable for cryptographic purposes or only for non-cryptographic use cases like hash tables.
- Performance benchmarks compared to Python's built-in hash() or other hashing libraries in typical workloads.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release <3.15,>=3.6 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 273 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 22,304,956 / month, #977 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableEnvironment :: ConsoleIntended Audience :: DevelopersIntended Audience :: Science/ResearchLicense :: OSI Approved :: MIT LicenseOperating System :: MacOS :: MacOS XOperating System :: Microsoft :: WindowsOperating System :: POSIX :: LinuxProgramming Language :: CythonProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Topic :: Scientific/Engineering |
Evidence: murmurhash-1.0.15-cp310-cp310-macosx_10_9_x86_64.whl; murmurhash-1.0.15-cp310-cp310-macosx_11_0_arm64.whl; murmurhash-1.0.15-cp310-cp310-manylinux1_x86_64.manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_5_x86_64.whl; murmurhash-1.0.15-cp310-cp310-manylinux2014_aarch64.manylinux_2_17_aarch64.whl; murmurhash-1.0.15-cp310-cp310-musllinux_1_2_aarch64.whl; murmurhash-1.0.15-cp310-cp310-musllinux_1_2_x86_64.whl; murmurhash-1.0.15-cp310-cp310-win_amd64.whl; murmurhash-1.0.15-cp310-cp310-win_arm64.whl; murmurhash-1.0.15-cp311-cp311-macosx_10_9_x86_64.whl; murmurhash-1.0.15-cp311-cp311-macosx_11_0_arm64.whl; murmurhash-1.0.15-cp311-cp311-manylinux1_x86_64.manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_5_x86_64.whl; murmurhash-1.0.15-cp311-cp311-manylinux2014_aarch64.manylinux_2_17_aarch64.whl; murmurhash-1.0.15-cp311-cp311-musllinux_1_2_aarch64.whl; murmurhash-1.0.15-cp311-cp311-musllinux_1_2_x86_64.whl; murmurhash-1.0.15-cp311-cp311-win_amd64.whl; murmurhash-1.0.15-cp311-cp311-win_arm64.whl; murmurhash-1.0.15-cp312-cp312-macosx_10_13_x86_64.whl; murmurhash-1.0.15-cp312-cp312-macosx_11_0_arm64.whl; murmurhash-1.0.15-cp312-cp312-manylinux1_x86_64.manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_5_x86_64.whl; murmurhash-1.0.15-cp312-cp312-manylinux2014_aarch64.manylinux_2_17_aarch64.whl
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See also murmurhash2 · mmhash3 · clickhouse-cityhash · fnvhash · siphash · py-multihash · mmh3 · pyfarmhash · uhashring · preshed