1. Create a package
    1. Package name and version
    2. Other metadata
    3. Data files
    4. Required packages
    5. Using setuptools to create a package
  2. Publish a package
  3. Find packages
  4. Install packages
  5. List installed packages
  6. Uninstall packages

A Guild AI package is a container for models and resources. Packages let developers easily publish their work for users to discover. They let users easily find, install, and use models. Packages are a central feature of Guild’s support for model collaboration, sharing and reuse.

Create a package

To create a package, add a package top-level object to a project Guild file.

Here’s an example of a basic package definition in a file:

- package: my-package
  version: 1.0

To create a package distribution, use the package command from the project directory:

guild package

This generates a file dist/NAME‑VERSION‑py2.py3‑none‑any.whl that can be shared with colleagues or published to PyPI.

For a list of

For a list of package attributes, refer to Packages reference.

Package name and version

Guild package names may be any valid Python package name. If you plan to publish your package (e.g. by uploading to PyPI), pick a name that is not already used by another package.

You may use a Python namespace in package names. For example, Guild AI packages are in the gpkg namespace (i.e. they start with gpkg.).

Refer to PEP 423 - Naming conventions and recipes related to packaging.

The package version is used to determine which version of a package is more recent. Versions may also contain a pre-release designation to indicate that it must be installed using the ‑‑pre option with pip install or guild install.

Refer to PEP 440 - Version Identification and Dependency Specification for details on package versions.

Other metadata

You can additional metadata for a package that helps users find and use your package.

The package description is a multi-line text value that provides a single line summary with an optional detailed package description. Here’s an example:

package: my-package
description: >
  A sample package

  This package demonstrates a multi-line description. The
  first line, appearing above, is used as the package summary,
  or short description. The description as a whole is used as
  the package long description.

Link to more information about the package.
Name of the package author or maintainer.
Email address of the package author or maintainer.
The license under which the packaged software and models is available. For help selecting an open source license for your project, see Choose an open source license. This value should correspond to the LICENSE file in your project.
A list of tags associated with the project. These are used to construct the package keywords. A tag should only contain alpha-numeric or underscore characters.


Guild always adds the gpkg keyword to packages it generated. This keyword must be present in order to designate the Python package as a Guild package.

Data files

Guild automatically packages the following project files:

  • Guild file - guild.yml
  • License file - LICENSE, LICENSE.*
  • Python source files - *.py

If your project requires additional files, you must specify them using data‑files, which is a list of paths or glob patterns relative to the project root directory.

For example, if your project requires the file labels.txt and the contents of the sample‑data directory, both located in the project root directory, you must specify it this way:

name: my-project
  - labels.txt
  - sample-data/*

Required packages

If your package requires other packages, you can specify those in the package requires attribute. This value must be a list of valid Python package names that may contain requirement specifiers.

The following package definition illustrates the use of requires:

- package: my-package
  version: 1.0
    - matplotlib
    - Pillow
    - keras==2.2.4
    - scipy>=1.1.0

Using setuptools to create a package

As an alternative to Guild’s packaging facility, you may use Python’s standard method of creating packages, which uses typically uses and the setuptools module.

For more information, see Packaging Python Projects.

If you use setuptools to generate a Python package rather than guild package, you must make two changes to your file to support Guild.

First, you must include gpkg as a package keyword. This is specified using the setup keywords argument:

import setuptools

    keywords="example gpkg"

Guild uses the gpkg keyword to identify Guild packages for the search and packages list commands.

Second, you must add a guild.model:PackageModel entry to the guild.models entry point for each model the package contains.

For example, if your package contains the models resnet‑50 and resnet‑101, you would include those models using the setup entry_points argument as follows:

import setuptools

        "guild.models": [
            "resnet-50 = guild.model:PackageModel",
            "resnet-101 = guild.model:PackageModel",

Guild uses the guild.models entry point to discover installed models.

For more information on entry points, see Entry points specification.

Publish a package

You can upload a package to PyPI when running the package command by specifying the ‑‑upload option. You may alternatively upload to TestPyPI using ‑‑upload‑test.

Guild supports the following additional upload parameters:

  • Repository URL
  • PyPI user name
  • PyPI user password
  • GPG identity used to sign the published package

For more information, see package command.

In order to publish to PyPI or TestPyPI, you must first create an account on the respective site.

Once you have an account, specify the applicable user name and password when uploading your Guild package.

Find packages

You can find Guild packages several ways:

guild search limits search results to Guild packages (i.e. packages that have the gpkg keyword), while pip search does not.

The following command, for example, searches for Guild packages that contain resnet‑50 in their description or tags/keywords:

guild search resnet-50

Install packages

Install packages using either guild install or pip.

Guild’s install command uses a slightly different set of options than pip’s install command. Refer to install for details.

Packages may be specified as PyPI project names, including requirement specifiers, or as paths to package distributions (e.g. wheels generated by guild package).

You can find package names using search (see Find packages above) or alternatively browse Guild AI packages.

List installed packages

List all installed Guild AI packages using packages.

You can list packages matching one or more terms using packages list:

For example, to list installed packages containing magenta, run:

guild packages list magenta

Uninstall packages

Uninstall packages using guild uninstall or pip.

Uninstalling a package will not remove dependencies that were installed when the package was installed. You must uninstall these packages separately.