---
id: openseespy
version: "3.8.0.0"
license: LICENSE.md
license_treatment: unclear
maintenance: active
---

# openseespy — OpenSeesPy — Python interpreter for OpenSees

License: unclear · Maintenance: active · Downloads: 625.7K/mo

## What it is and what it does

OpenSeesPy provides a Python interface to OpenSees, an open-source framework for structural analysis and earthquake engineering simulation. It wraps the core OpenSees engine and exposes it through a Python API, allowing you to define structural models, apply loads, run analyses, and extract results programmatically.

The package itself is a meta-package—when you install it, pip automatically detects your operating system and installs the matching platform-specific binary (Linux, Windows, or macOS). This removes the friction of manual binary selection. The package requires Python 3.10 or later and has three runtime dependencies, one for each supported platform.

Use it for:

- Define and analyze structural models for buildings, bridges, or other civil infrastructure using Python scripts.
- Run earthquake ground-motion simulations and seismic response analyses on structural systems.
- Automate parametric studies by scripting multiple model variations and batch-running analyses.
- Integrate structural analysis into larger engineering workflows or optimization loops.
- Prototype and validate finite-element models before deploying to production analysis tools.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

OpenSeesPy is a Python interpreter for OpenSees, a structural analysis and simulation framework. It automatically installs the correct platform-specific binary for your operating system.

Yes, if you need Python-based structural analysis and simulation. The package has low install friction, active maintenance, no known vulnerabilities, and broad platform support. The main caveat is that license terms are unclear—verify LICENSE.md in the repository before use in commercial or restricted-license projects. For academic and open-source structural engineering work, it is a solid choice.

## Install

pip install openseespy
uv add openseespy
poetry add openseespy

## Installing openseespy

Before you install: Installation is straightforward with low friction—the package is a meta-package that automatically selects and installs the correct platform-specific binary (openseespylinux, openseespywin, or openseespymac) for your OS. The project is actively maintained with recent commits.

License in practice: License treatment is unclear—the package references LICENSE.md but provides no SPDX identifier. Before relying on this package in a commercial or restricted-license context, verify the actual license terms in the repository.

Quickstart:

pip install openseespy
import openseespy.opensees as ops

Requires Python 3.10 or later.

Verify before relying:

- Actual license terms and restrictions (LICENSE.md is referenced but SPDX is null)
- Whether platform-specific binaries are pre-built or compiled on install
- Performance characteristics and typical use-case scale limits

## Package facts

- License: LICENSE.md (unclear)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 625.7K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

structural analysis python, opensees python interpreter, finite element analysis, earthquake engineering simulation, structural dynamics modeling, opensees python binding, seismic analysis tool, structural-analysis, finite-element, seismic-engineering

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