---
id: pastedeploy
version: "3.1.0"
license: MIT
license_treatment: permissive
maintenance: active
---

# PasteDeploy — Load, configure, and compose WSGI applications and servers

License: permissive · Maintenance: active · Downloads: 3.1M/mo

## What it is and what it does

PasteDeploy is a mature WSGI application loader that reads declarative configuration files (typically INI format) to instantiate and compose web applications and servers. Rather than writing code to wire up your application, you describe it in a configuration file with URIs pointing to entry points, and PasteDeploy handles the loading and initialization.

The package has been in active development since its first release in 2005 and supports Python 3.7 through 3.12. It depends only on importlib-metadata and installs with minimal friction. It is primarily used in environments where declarative, file-based application setup is preferred over programmatic initialization.

Use it for:

- Load a WSGI application from an INI configuration file without writing deployment code.
- Compose multiple WSGI middleware layers declaratively in a single configuration file.
- Load different application configurations for development, staging, and production environments.
- Set up web servers with configuration-driven initialization in legacy or Paste-based projects.

## Worth the install?

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

PasteDeploy loads and configures WSGI applications and servers from URI-based configuration files, allowing you to compose web applications declaratively.

Yes, if you are working with WSGI applications in environments that use INI-style configuration. The package is mature, actively maintained, has no known vulnerabilities, and installs cleanly. However, if you are starting a new project, verify whether your chosen web framework or deployment tool has a more modern alternative, as this package reflects older Python web practices.

## Install

pip install pastedeploy
uv add pastedeploy
poetry add pastedeploy

## Installing PasteDeploy

Before you install: Low friction installation with a single lightweight runtime dependency (importlib-metadata). Actively maintained with recent commits and support for Python 3.7 through 3.12.

License in practice: MIT license permits unrestricted use, modification, and distribution in both open-source and proprietary projects.

Quickstart:

pip install PasteDeploy

import importlib.metadata
from pastedeploy import loadapp
app = loadapp('config:development.ini', relative_to='.')

Requires an INI-style configuration file describing the WSGI application and server; PasteDeploy does not generate these files automatically.

Verify before relying:

- Whether the package is still actively used in modern Python web frameworks or has been superseded by newer deployment tooling.
- Compatibility with contemporary WSGI servers and whether it integrates with modern async frameworks.
- Whether the usage example reflects the actual public API of the current version.

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 3.1M/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

wsgi application loader, wsgi configuration management, load wsgi apps from ini files, web application deployment config, wsgi server setup, wsgi-deployment, configuration-management

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