pyIIIFpres 0.1.1

A tool creating JSON manifests compliant with IIIF presentation API 3.0

pyIIIFpres

This is a Python module built for easing the construction of JSON manifests compliant with IIIF API 3.0 in a production environment, similarly to iiif-prezi for earlier versions of the protocol.

NOTE: This is NOT a reference implementation. Pull requests and issues are welcome!

Installation

The library uses only standard libraries and can be installed using pip:

pip install git+https://github.com/giacomomarchioro/pyIIIFpres

Basic usage

The module maps the API structure to Python classes. The user set_ objects that can have only one value (e.g. id) and add_ objects that can have multiple entities (e.g. labels). As an example, we will execute the Simple Manifest - Book recipe from the IIIF cookbook. More examples from the cookbook in the examples folder of this repository.

from IIIFpres import iiifpapi3
iiifpapi3.BASE_URL = "https://iiif.io/api/cookbook/recipe/0009-book-1"
manifest = iiifpapi3.Manifest()
manifest.set_id(extendbase_url="manifest.json")
manifest.add_label("en","Simple Manifest - Book")
manifest.add_behavior("paged")

#        label       width height id                                                                            service  
data = (("Blank page",3204,4613,"https://iiif.io/api/image/3.0/example/reference/59d09e6773341f28ea166e9f3c1e674f-gallica_ark_12148_bpt6k1526005v_f18","/full/max/0/default.jpg"),
        ("Frontispiece",3186,4612,"https://iiif.io/api/image/3.0/example/reference/59d09e6773341f28ea166e9f3c1e674f-gallica_ark_12148_bpt6k1526005v_f19","/full/max/0/default.jpg"),
        ("Title page",3204,4613,"https://iiif.io/api/image/3.0/example/reference/59d09e6773341f28ea166e9f3c1e674f-gallica_ark_12148_bpt6k1526005v_f20","/full/max/0/default.jpg"),
        ("Blank page",3174,4578,"https://iiif.io/api/image/3.0/example/reference/59d09e6773341f28ea166e9f3c1e674f-gallica_ark_12148_bpt6k1526005v_f21","/full/max/0/default.jpg"),
        ("Bookplate",3198,4632,"https://iiif.io/api/image/3.0/example/reference/59d09e6773341f28ea166e9f3c1e674f-gallica_ark_12148_bpt6k1526005v_f22","/full/max/0/default.jpg"),)

for idx,d in enumerate(data):
    idx+=1 
    canvas = manifest.add_canvas_to_items()
    canvas.set_id(extendbase_url="canvas/p%s"%idx) # in this case we use the base url
    canvas.set_height(d[2])
    canvas.set_width(d[1])
    canvas.add_label("en",d[0])
    annopage = canvas.add_annotationpage_to_items()
    annopage.set_id(extendbase_url="page/p%s/1" %idx)
    annotation = annopage.add_annotation_to_items(target=canvas.id)
    annotation.set_id(extendbase_url="annotation/p%s-image"%str(idx).zfill(4))
    annotation.set_motivation("painting")
    annotation.body.set_id("".join(d[3:]))
    annotation.body.set_type("Image")
    annotation.body.set_format("image/jpeg")
    annotation.body.set_width(d[1])
    annotation.body.set_height(d[2])
    s = annotation.body.add_service()
    s.set_id(d[3])
    s.set_type("ImageService3")
    s.set_profile("level1")

manifest.json_save("manifest.json")

Debug the manifest

When you are populating a new IIIF type from scratch some helpful function can be used for spotting errors.

.inspect() method returns a JSON representation of the object where the recommended and required fields are shown:

from IIIFpres import iiifpapi3
manifest = iiifpapi3.Manifest()
manifest.inspect()

.show_errors_in_browser() method open a new browser tab highlighting the required and recommended fields.

manifest.show_errors_in_browser()

Reading the manifest (experimental)

A json file compliant with presentation API3 can be read as follow:

from IIIFpres.utilities import read_API3_json
mymanifest = read_API3_json('manifest.json')

This map Canvas, Annotation and the major IIIF types to iiifpapi3 classes, loading the rests as dicts.

See the project wiki for information regarding getting image sizes automatically, improve the writing performance and more.

Acknowledgements

I would like to thanks Martim Passos for reporting issues, and IIIF community and coordinators.