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passagemath-homfly

library10.8.4pypypiunverified

passagemath-homfly provides computation of Homfly polynomials for knots and links using libhomfly, integrated with the passagemath ecosystem. Current version 10.8.4, requiring Python ≥3.11 and <3.15. Follows passagemath release cadence; stable maintenance.

ai-ml data

pip install passagemath-homfly

github ↗package ↗docs ↗changelog ↗

INSTALL

IMPORT

SIG · PASSAGEMATH-HOMFLY

passagemath-homfly

ai-mlpythonv10.8.4

Install

2.4s avg

Import

—

Disk

18MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v10.6.48 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 19.5MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 2.4s · import 0.000s · 20MB

18MB installed

● package 18MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

link_homfly_polynomial

✓ from passagemath_homfly import link_homfly_polynomial

✗ from passagemath_homfly import link_homfly_polynomial

Compute the Homfly polynomial of a trefoil knot. Requires SageMath environment.

from sage.knots.knot import Knot from passagemath.homfly import link_homfly_polynomial # Create a trefoil knot (3_1) trefoil = Knot('3_1') # Compute Homfly polynomial poly = link_homfly_polynomial(trefoil) print(poly)

Debug

Known issues

deprecatedDirect import from 'passagemath.homfly' may be deprecated in future releases. Use full import path as shown in quickstart.

fix

Always use 'from passagemath.homfly import link_homfly_polynomial'

affects: >=10.8

gotchaKnot/link must be a SageMath Knot or Link object, not a string. Common mistake: passing a knot name as string directly.

fix

Wrap knot name in Knot('3_1') or Link().

affects: all

breakingPython 3.11+ required. Versions prior to 10.8 may fail on Python 3.12+ due to C library incompatibility.

fix

Upgrade to 10.8.4 and use Python 3.11-3.14.

affects: <10.8

Upgrade

Version history

10.8.4latest on PyPI · released Apr 20, 2026

Audit

Dependencies

passagemath-sagerequiredRequired for SageMath/Python integration and knot/link data structures

libhomflyrequiredCore library for Homfly polynomial computation (installed automatically on most systems, but may need separate system install on macOS/Linux)

Agent activity

19 hits · last 30 days

node

Resources

githubhttps://github.com/passagemath/passagemath ↗

packagehttps://pypi.org/project/passagemath-homfly/ ↗

docshttps://passagemath.org/docs/latest ↗

changeloghttps://github.com/passagemath/passagemath/releases ↗