iiif-prezi3

IIIF Presentation API 3 Python Library

Installation

PyPI

The easiest way to install the iiif-prezi3 library is directly from PyPI:

pip install iiif-prezi3

Manual installation

Alternatively, you can clone the repository and run setup.py locally:

git clone https://github.com/iiif-prezi/iiif-prezi3.git

or

git clone [email protected]:iiif-prezi/iiif-prezi3.git

followed by:

cd iiif-prezi3
python setup.py install

Basic Usage

You can now import the library or individual classes from within Python and start creating your IIIF Presentation 3 objects:

Directly creating a Manifest

>>> from iiif_prezi3 import Manifest
>>> m = Manifest(id="https://example.com/iiif/manifest.json", label={"en":["Example Manifest"]})
>>> print(m.json(indent=2))
{
  "@context": "http://iiif.io/api/presentation/3/context.json",
  "id": "https://example.com/iiif/manifest.json",
  "type": "Manifest",
  "label": {
    "en": [
      "Example Manifest"
    ]
  }
}

Importing an existing IIIF Manifest

If you have an existing IIIF Presentation v3 Manifest, you can load it via the built-in json module and create the objects:

>>> from iiif_prezi3 import Manifest
>>> import json
>>> manifest_json = json.load(open("example.json"))
>>> m = Manifest(**manifest_json)
>>> print(m.json(indent=2))
{
  "@context": "http://iiif.io/api/presentation/3/context.json",
  "id": "https://iiif.io/api/cookbook/recipe/0003-mvm-video/manifest.json",
  "type": "Manifest",
  "label": {
    "en": [
      "Video Example 3"
    ]
  },
  "items": [
    {
      "id": "https://iiif.io/api/cookbook/recipe/0003-mvm-video/canvas",
      "type": "Canvas",
      "height": 360,
      "width": 640,
      "duration": 572.034,
      "items": [
        {
          "id": "https://iiif.io/api/cookbook/recipe/0003-mvm-video/canvas/page",
          "type": "AnnotationPage",
          "items": [
            {
              "id": "https://iiif.io/api/cookbook/recipe/0003-mvm-video/canvas/page/annotation",
              "type": "Annotation",
              "motivation": "painting",
              "body": {
                "id": "https://fixtures.iiif.io/video/indiana/lunchroom_manners/high/lunchroom_manners_1024kb.mp4",
                "type": "Video",
                "height": 360,
                "width": 480,
                "duration": 572.034,
                "format": "video/mp4"
              },
              "target": "https://iiif.io/api/cookbook/recipe/0003-mvm-video/canvas"
            }
          ]
        }
      ]
    }
  ]
}

Extensions

iiif-prezi3 includes the capability to load extensions to the IIIF Presentation schema (e.g navPlace) and modify the library's Python classes to include extra properties, validation, helper methods, etc.

Published extensions from the IIIF Registry of Extensions are included with the package, and can be loaded using the iiif_prezi3.load_bundled_extensions() method.

Called without argument, this method will load all bundled extensions listed in the iiif_prezi3/config/extensions.json file. If you wish to only load selected extensions from those available bundled with the library, you can pass either the path to a JSON file, or a list of extension names as an argument to the function:

>>> import iiif_prezi3
>>> iiif_prezi3.load_bundled_extensions(extensions="/path/to/chosen_extensions.json")

>>> import iiif_prezi3
>>> iiif_prezi3.load_bundled_extensions(extensions=['example_extension'])

Extensions work in much the same way as helper methods, and are monkeypatched into the relevant objects in the iiif_prezi3.skeleton class, from which everything is loaded. For a simple example, please see the extensions/example_extension.py file, and the documentation on writing a helper method.

Local Development

For developing iiif-prezi3 locally, clone the repo and then install it and the development dependencies using pip's "editable mode":

git clone [email protected]:iiif-prezi/iiif-prezi3.git
cd iiif-prezi3
pip install -e .[dev]

Running Tests

Tests (including linting) can be run using tox. First, install tox with pip install tox, then type tox.

Versioning

iiif-prezi3 broadly follows Semantic Versioning. Patch releases are used for bug fixes, minor releases add new functionality and maintain backwards compatibility, and major versions contain breaking changes to the public API of the library. Links to the changes between individual versions can be found on the releases page.

Get Involved

The iiif-prezi3 maintainers welcome contributions from the community - issues, pull requests, use cases, etc. We have a guideline document for contributions and a channel #iiif-prezi3 on the IIIF Slack workspace, which can be joined from the IIIF website's Get Involved page.