---
id: confu
version: "1.9.0"
license: Apache-2.0
license_treatment: permissive
maintenance: dormant
---

# confu — Configuration file validation and generation

License: permissive · Maintenance: dormant · Downloads: 93.5K/mo

## What it is and what it does

Confu is a configuration validation and generation library for Python that lets you define schemas for configuration files and validate them against those schemas. It provides a framework for building structured configuration management into applications, handling both the validation of existing config files and the generation of new ones.

The package depends on munge for its core functionality and supports Python 3.8 through 3.12. It is marked as Production/Stable but has not received updates since 2024-02-21, so while it is mature and usable, active maintenance is limited. The library was recently renamed from 'cfu' to 'confu' on PyPI.

Use it for:

- Validate application configuration files against a predefined schema before runtime.
- Generate template or default configuration files programmatically for new deployments.
- Enforce consistent configuration structure across multiple services or environments.
- Build a configuration layer into a tool or framework that accepts user-supplied config files.

## Worth the install?

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

Confu validates and generates configuration files, providing a framework to define, check, and produce structured configuration data.

Yes, if you need straightforward configuration validation and generation. The package is stable, permissively licensed, and has low install friction. However, dormancy since 2024-02-21 means no recent bug fixes or feature updates—suitable for stable, mature use cases but not for projects requiring active upstream support.

## Install

pip install confu
uv add confu
poetry add confu

## Installing confu

Before you install: Installation is straightforward with low friction. The package is marked Production/Stable and supports Python 3.8 through 3.12, though it has been dormant since its last release on 2024-02-21.

License in practice: Licensed under Apache-2.0 (permissive), allowing free use, modification, and distribution with minimal restrictions—suitable for both open-source and commercial projects.

Quickstart:

pip install confu

import confu
# Define and validate configuration using confu's schema framework

Requires Python >=3.8,<4.0; depends on the munge package at runtime.

Verify before relying:

- What specific configuration formats (YAML, JSON, TOML, etc.) does confu support?
- Are there breaking changes or migration notes for users upgrading from the old 'cfu' package name?
- What is the scope and API surface of the validation and generation framework?

## Package facts

- License: Apache-2.0 (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: dormant
- Downloads: 93.5K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

configuration validation, config file generation, configuration schema, config validation framework, structured config management, configuration checking, config file validator, config-validation, schema-definition

[View on SkillFed](https://skillfed.io/packages/confu) · [View on PyPI](https://pypi.org/project/confu/)