poetry-vendor-plugin 0.4.2

Vendor internal packages from private PyPI for offline production deployments

Poetry Vendor Plugin

Vendor internal packages from private PyPI repositories for offline/air-gapped production deployments.

The Problem

You have internal Python packages hosted on a PyPI server inside your company LAN. Development machines can reach it, but production servers cannot (either air-gapped or on a different network). You need a way to bundle those internal packages as wheels into your project so production can install them without network access.

The Solution

This plugin adds poetry vendor pull — a command that downloads your configured internal packages as wheels into a vendor/ directory. You commit those wheels, and production installs from them using Poetry path dependencies.

Installation

Poetry plugins are installed into Poetry's own environment:

poetry self add poetry-vendor-plugin

Verify the plugin is loaded:

poetry self show plugins

Example

See the example/ directory for a complete, runnable project that configures one private PyPI server and two vendored packages.

Usage

1. Configure vendor packages in your project

You can edit pyproject.toml directly, or use the convenience commands:

# Register a private PyPI server
poetry vendor add-server https://internal-pypi.company.local/simple/ internal

# Register a plain-HTTP server as trusted
poetry vendor add-server http://192.168.1.10/simple/ internal --trusted

# Add a package from that server
poetry vendor add my-build-tools --server internal --constraint "^1.0.0"

The equivalent manual configuration looks like this:

[tool.vendor]
vendor-dir = "vendor"

[tool.vendor.server]
internal = "https://internal-pypi.company.local/simple/"

[tool.vendor.packages.internal]
my-build-tools = "^1.0.0"
my-ui-elements = ">=2.0.0,<3.0.0"

2. Pull vendor packages

poetry vendor pull

This downloads wheels to vendor/ with their original versioned filenames:

vendor/
├── my_build_tools-1.2.0-py3-none-any.whl
├── my_ui_elements-2.1.0-py2.py3-none-any.whl
└── vendor.lock

vendor.lock records the resolved version and the actual wheel filename. Commit both the wheels and the lock file.

3. Use path dependencies in production

In your pyproject.toml, add path dependencies for the vendored wheels:

[tool.poetry.dependencies]
python = "^3.11"
requests = "^2.31"
my-build-tools = { path = "vendor/my_build_tools-1.2.0-py3-none-any.whl" }
my-ui-elements = { path = "vendor/my_ui_elements-2.1.0-py2.py3-none-any.whl" }

After each poetry vendor pull or poetry vendor update, the plugin automatically updates these path dependencies to the current wheel filenames in pyproject.toml.

4. List vendored packages

poetry vendor list

5. Update vendor packages

poetry vendor update          # Update all
poetry vendor update -p my-build-tools  # Update specific package

Commands

Command	Description
poetry vendor add-server <url> <name>	Register a PyPI server in pyproject.toml
poetry vendor add-server <url> <name> --trusted	Register a server and mark its host as trusted
poetry vendor add <package> --server <name>	Add a package, download it, and add a path dependency
poetry vendor add <package> --server <name> --constraint <spec>	Add a package with a specific version specifier
poetry vendor pull	Download vendor packages to vendor/
poetry vendor pull --force	Re-download even if already present
poetry vendor pull --dry-run	Preview what would be downloaded
poetry vendor list	Show all vendored packages with sizes
poetry vendor update	Force re-download all packages

Configuration Reference

[tool.vendor]
vendor-dir = "vendor"  # Directory for vendored wheels (default: "vendor")

# Optional: list hosts that should be trusted when using plain HTTP indexes.
# Pip ignores HTTP indexes by default unless the host is marked as trusted.
trusted-hosts = ["internal-pypi.local"]

[tool.vendor.server]
server1 = "https://..."  # Named private PyPI index URL

[tool.vendor.packages.server1]
package-name = "^1.0.0"  # Package name and PEP 440 version specifier

You can define multiple servers and group packages under the server they come from:

[tool.vendor.server]
internal = "https://internal-pypi.company.local/simple/"
legacy = "https://legacy-pypi.company.local/simple/"

[tool.vendor.packages.internal]
my-build-tools = "^1.0.0"

[tool.vendor.packages.legacy]
old-ui-elements = ">=1.0.0,<2.0.0"

Lock File

After running poetry vendor pull, a <vendor-dir>/vendor.lock file is created. It tracks the resolved version, source, and requested version specifier for each package. Commit this file alongside the wheels so that poetry vendor list can show accurate version information and so updates behave predictably across machines.

Requirements

• Python 3.9+
• Poetry 2.0+

License

MIT