Finding signposting in FAIR resources
.. image:: https://img.shields.io/pypi/v/signposting :target: https://pypi.org/project/signposting/ :alt: pypi install signposting
.. image:: https://img.shields.io/pypi/pyversions/signposting :target: https://pypi.org/project/signposting/ :alt: Python
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This library helps client to discover links that follow the
signposting_ conventions, most notably FAIR Signposting_.
This can then be used to navigate between:
The library works by inspecting the HTTP messages for
Link headers from a given URI with find_signposting_http, which
which categorize them by their rel Link relation_ into a
Signposting object with absolute URIs.
It is up to the clients of this library to decide how to further
navigate or retrieve the associated resources, e.g. using a
RDF library like rdflib_ or retrieving resources using urllib_.
Future versions of this library may also provide ways to discover
FAIR signposting in HTML <link> annotations and in
linkset_ documents.
FAIR Signposting_ has been proposed as a mechanism for automated clients to find
metadata and persistent identifiers for FAIR data residing in repositories that follow
the traditional PID-to-landing-page metaphor.
This avoids the need for client guesswork with content-negotiation, and allows structured metadata to be provided by the repository rather than just PID providers like DataCite.
The main idea of FAIR Signposting is to re-use the existing HTTP mechanism for links, using
existing relations like describedby, cite-as and item.
The aim of this library is to assist such clients to find and consume FAIR resources for further processing. It is out of scope for this code to handle parsing of the structured metadata files.
© Copyright 2022 The University of Manchester, UK.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
SPDX-License-Identifier: Apache-2.0
See the authors_ page for a full list of contributors.
The documentation_ pages explain briefly how to use this library including a listing of modules and methods.
As usual in any GitHub based project, raise an issue_ if you find any bug or have other suggestions; or open a discussion_ if you want to discuss or talk :-)
v0.9.9
.. _GitHub Actions: https://github.com/features/actions .. _PyPI: https://pypi.org .. _bump2version: https://github.com/c4urself/bump2version .. _discussion: https://github.com/stain/signposting/discussions .. _documentation: https://signposting.readthedocs.io/ .. _issue: https://github.com/stain/signposting/issues .. _main branch: https://github.com/stain/signposting/tree/main .. _pdb-tools: https://github.com/haddocking/pdb-tools .. _project's documentation: https://signposting.readthedocs.io/en/latest/index.html .. _pytest: https://docs.pytest.org/en/stable/git .. _test.pypi.org: https://test.pypi.org .. _ReadTheDocs: https://readthedocs.org/ .. _signposting: https://signposting.org/conventions/ .. _FAIR Signposting: https://signposting.org/FAIR/ .. _Link Relation: https://www.iana.org/assignments/link-relations/ .. _rdflib: https://rdflib.readthedocs.io/en/stable/ .. _urllib: https://docs.python.org/3/library/urllib.html .. _linkset: https://signposting.org/FAIR/#linksetrec .. _authors: https://signposting.readthedocs.io/en/latest/authors.html
CITATION.cff#fragments in profile URIs (e.g. for JSON-LD)codemeta.json and contributorsSignposting.context_url, use Signposting.context insteadfind_signposting method, use find_signposting_http_linkSignposting.linksets now included in iterationwarn_duplicate option to Signposting constructorSignposting now includes Link from other contextsSignposting added support for + (add) and | (merge) operationsSignpost and Signposting support for == and hash()Signpost correctly shows context as anchor=Signpost.with_context to change a signpost's for_contextSignposting and Signpost== and hash()Signpost.with_context to change a signpost's for_contextSignposting -- users of find_signposting_linkset should take particularly care to look up using for_contextContent-Location headerfind_signposting_linkset listed in modulefind_signposting_linksetfind_signposting, renamed to find_signposting_http_linksignposting.htmllinkssignposting.htmllinkssignposting.htmllinks modulefind_signposting_html in public APIhtmllinkssignposting.htmllinks for now)Signposting and Signpost classes. str(s) return HTTP link headers.Signposting.signposts propertySignposting is now iterable__init__.py public APISignposting classes
to avoid exposing the ParsedLink implementation.Signposting attributes like .authors are now
sets to indicate order is not (very) important.Signposting classesfind_landing_page renamed find_signposting_httpFAQs
Parse and navigate FAIR Signposting Link headers
We found that signposting demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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