---
id: fprime-fpp
version: "3.2.0"
license: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for… (full text in the JSON record)
license_treatment: permissive
maintenance: active
---

# fprime-fpp — FPP Modeling Language

License: permissive · Maintenance: active · Downloads: 86.3K/mo

## What it is and what it does

FPP is a domain-specific modeling language designed for the F Prime flight software framework, a NASA-developed platform for building spacecraft and embedded systems. The package provides compiler tools that analyze and translate FPP model definitions into executable code or intermediate representations. It ships with syntax highlighting support for Vim and Emacs, and integrates with Visual Studio Code through a plugin.

The package is intended for developers building flight software or embedded systems who need to model system architecture, component definitions, and communication patterns in a structured, verifiable way. It has no runtime dependencies and installs cleanly across modern Python versions, making it suitable for integration into development pipelines and CI/CD workflows.

Use it for:

- Define and validate spacecraft component architectures and communication topologies in F Prime projects.
- Translate high-level system models into F Prime framework code during embedded system development.
- Perform static analysis on FPP model files to catch design errors before implementation.
- Integrate FPP modeling into continuous integration pipelines for flight software projects.
- Develop and maintain system specifications for NASA or aerospace embedded systems using a standardized language.

## Worth the install?

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

FPP is a modeling language and compiler for the F Prime flight software framework, providing analysis and translation tools to define spacecraft and embedded system architectures.

Yes, if you are developing for the F Prime flight software framework or building NASA-style embedded systems. The package is production-stable, actively maintained, has zero dependencies, and carries a permissive license. Install it as part of your F Prime toolchain or standalone for FPP modeling work. Not relevant for general-purpose Python development outside aerospace/embedded systems.

## Install

pip install fprime-fpp
uv add fprime-fpp
poetry add fprime-fpp

## Installing fprime-fpp

Before you install: Low install friction with no runtime dependencies. Actively maintained with recent commits and stable production status across Python 3.9–3.12.

License in practice: Apache 2.0 permissive license allows commercial and derivative use with minimal restrictions; requires attribution and notice preservation in distributions.

Quickstart:

pip install fprime-fpp

from fprime_fpp import compiler
# Use compiler tools to analyze and translate FPP models

Requires Python 3.9 or later; intended for POSIX/Unix environments.

Verify before relying:

- Specific compiler capabilities and supported FPP language features beyond the modeling language itself.
- Whether the package includes editor plugins or if those are separate installations.
- Integration requirements or workflow with the main F Prime framework beyond standalone use.

## Package facts

- License: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for… (full text in the JSON record) (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 86.3K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

fprime modeling language, flight software framework, embedded system modeling, fprime compiler, nasa fprime tools, spacecraft software design, fprime fpp language, aerospace, embedded-systems, modeling-language

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