fnvhash
Pure Python FNV hash implementation.
Decision gist · record as of 2026-08-14
Yes, if you need FNV hashing and portability matters more than performance. The package is stable, has no dependencies, and installs easily. Skip it if you need high-speed hashing—the description itself recommends pyhash for performance-critical use cases. No known vulnerabilities.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later.
- Low install friction with no runtime dependencies.
- Maintenance is aging—last commit was 2025-05-05 and the package is in Beta status, but the repository is not archived and receives occasional updates.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute this package freely with minimal restrictions.
last release 2025-05-05 (466 days) · last repo commit 2025-05-05 · 36 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 862,284 downloads/mo, #4,870 on PyPI
Alternatives
Verify before relying
pip install fnvhash
from fnvhash import fnv1a_32
hash_value = hex(fnv1a_32(b'foo'))- Whether FNV hashes are suitable for cryptographic purposes or only for non-security use cases.
- Performance characteristics compared to alternatives when speed is important.
- Which FNV variants (FNV-1, FNV-1a, bit widths) are supported beyond the fnv1a_32 example shown.
What it is and what it does
fnvhash is a pure Python implementation of the FNV (Fowler-Noll-Vo) hash family. It trades performance for portability—the pure Python approach means it runs anywhere without compiled dependencies, but will be slower than optimized alternatives for high-throughput hashing.
The package is useful when you need FNV hashing in environments where installing compiled extensions is difficult or when cross-platform compatibility matters more than speed. It has no runtime dependencies, installs cleanly, and has 100% test coverage. It is licensed under MIT.
Use it for
- Computing checksums or hash table keys in pure Python environments where C extensions cannot be installed.
- Generating FNV hashes for data deduplication or content-addressed storage in portable Python code.
- Hashing datasets where compatibility is prioritized over performance.
- Educational purposes to understand FNV hash algorithm implementation.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need FNV hashing and portability matters more than performance.
The package is stable, has no dependencies, and installs easily. Skip it if you need high-speed hashing—the description itself recommends pyhash for performance-critical use cases. No known vulnerabilities.
Install
fnvhash on PyPI
Before you install
Low install friction with no runtime dependencies. Maintenance is aging—last commit was 2025-05-05 and the package is in Beta status, but the repository is not archived and receives occasional updates.
Requires Python 3.9 or later.
License in practice
MIT license is permissive; you can use, modify, and distribute this package freely with minimal restrictions.
Quickstart
pip install fnvhash
from fnvhash import fnv1a_32
hash_value = hex(fnv1a_32(b'foo'))Verify before relying
- Whether FNV hashes are suitable for cryptographic purposes or only for non-security use cases.
- Performance characteristics compared to alternatives when speed is important.
- Which FNV variants (FNV-1, FNV-1a, bit widths) are supported beyond the fnv1a_32 example shown.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Aging 466 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 862,284 / month, #4,870 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 :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 2.7Programming Language :: Python :: 3Topic :: InternetTopic :: Software DevelopmentTopic :: Software Development :: Libraries :: Python ModulesTopic :: Utilities |
Evidence: fnvhash-0.2.1-py3-none-any.whl
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See also fnv-hash-fast · murmurhash · simhash · clickhouse-cityhash · uhashring · siphash · cityhash · dict-hash · ImageHash · bbhash