xpresslibs

library9.9.0pypypi✓ verified 84d ago

Python distribution of the FICO Xpress Optimizer solver libraries (version 9.8.1). Provides the core C libraries (XPRS DLLs/SOs) for mathematical optimization, typically accessed via the xpress Python package. Bundles the native solver binaries needed by the xpress interface.

data ai-ml

pip install xpresslibs

package ↗homepage ↗

INSTALL

IMPORT

SIG · XPRESSLIBS

xpresslibs

datapythonv9.9.0

Install

2.7s avg

Import

—

Disk

157MB

Pass rate

5/ 10

Env Coverage5 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v9.9.0 · 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

build_error

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 2.7s · import 0.000s · 160MB

157MB installed

● package 157MB

Code

Verified usage

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

xpresslibs

✓ import xpresslibs

✗ import xpress as xp

Basic usage: create a problem, add variables and constraints, solve with Xpress Optimizer.

import xpress as xp p = xp.problem() x = p.addVariable(name='x') y = p.addVariable(name='y') p.setObjective(x + 2*y, sense=xp.minimize) p.addConstraint(x + y >= 1) p.optimize() print("x =", p.getSolution(x)) print("y =", p.getSolution(y))

Debug

Known issues

breakingxpresslibs 9.8.1 includes the Xpress Optimization 9.8.1 solver libraries. Libraries are platform-specific (Windows, Linux, macOS) and require matching architecture (64-bit). Incompatible with older xpress Python package versions.

fix

Ensure xpresslibs version matches xpress package version (e.g., both 9.8.1).

affects: >=9.8.0

gotchaxpresslibs does not install the xpress Python package; it only provides the native libraries. Installing xpresslibs alone will not make the solver usable.

fix

Install both: pip install xpress xpresslibs, or simply pip install xpress which automatically pulls xpresslibs.

affects: all

deprecatedSupport for 32-bit architectures was dropped in Xpress 9.0. Older xpresslibs versions may still include 32-bit libraries, but 9.8.1 only ships 64-bit binaries.

fix

Use a 64-bit Python interpreter and operating system.

affects: >=9.0

gotchaLicense activation required. The Xpress Optimizer is commercial software; a license file (xpauth.xpr) must be present. Without a valid license, the solver fails with an error.

fix

Set environment variable XPRESSDIR to the installation path or place license in the working directory. Obtain a license from FICO.

affects: all

Upgrade

Version history

9.9.0latest on PyPI · released May 18, 2026

Audit

Dependencies

xpress>=9.8.1requiredxpresslibs provides the native libraries required by the xpress package's Optimizer API. Without xpress, the libraries are not directly usable from Python.

Agent activity

45 hits · last 30 days

node

OpenAI (training)

Resources

packagehttps://pypi.org/project/xpresslibs/ ↗

homepagehttps://www.fico.com/en/products/fico-xpress-optimization ↗