idutils 1.6.0

"Small library for persistent identifiers used in scholarly communication."

Small library for validating and normalising persistent identifiers used in scholarly communication.

• Free software: Revised BSD license

• Documentation: https://idutils.readthedocs.io.

Features

• Validation and normalization of persistent identifiers.

• Detection of persistent identifier scheme.

• Generation of resolving links for persistent identifiers.

• Supported schemes: ISBN10, ISBN13, ISSN, ISTC, DOI, Handle, EAN8, EAN13, ISNI ORCID, ARK, PURL, LSID, URN, Bibcode, arXiv, PubMed ID, PubMed Central ID, GND, SRA, BioProject, BioSample, Ensembl, UniProt, RefSeq, GenBank/RefSeq, SWH, OpenAlex, CSTR, RRID.

Installation

The IDUtils package is on PyPI so all you need is:

$ pip install idutils

Changes

Version v1.6.0 (released 2026-03-19)

• refactor: remove DeprecationWarning

• feat: add cstr and rrid identifiers

• adding tests

• feat: add openalex validator

Version v1.5.1 (released 2025-12-15)

• feat: add support for wikidata type QID scheme

• gh-action: various version bumps

Version v1.5.0 (released 2025-07-14)

• chores: replaced importlib_metadata with importlib.metadata

Version 1.4.5 (2025-06-05)

• ark: fix regex to match new ARK identifiers without slash

Version 1.4.4 (2025-06-03)

• swhid: improved SWHID validation

• tests: additional tests

Version 1.4.3 (2025-05-12)

• is_url: allow URL parameters (i.e. semicolon)

• gnd: improve validation and normalization

• pmcid: fix url to a working location

• pmid: add trailing slash

• new: email and sha1 identifiers

Version 1.4.2 (2024-11-01)

• setup: remove pytest-invenio to make imports cleaner

• setup: install importlib_metadata for compatibility

• bibcode/ads: normalize unicode

Version 1.4.1 (2024-10-18)

• install: add importlib_metadata

Version 1.4.0 (2024-10-17)

• Restructure module to be configurable and readable.

• Adds a new entrypoint to register new custom schemes

• Adds deprecations for direct imports of schemes

Version 1.3.0 (2024-10-15) (yanked due to undesired flask dependency)

• Restructure module to be configurable and readable.

• Adds a new entrypoint to register new custom schemes

• Adds deprecations for direct imports of schemes

Version 1.2.1 (2023-03-02)

• Fixes ORCiD validation, by adding the new ISNI block range.

Version 1.2.0 (2023-01-30)

• schemes: add support for viaf and urn

Version 1.1.12 (2022-02-28)

• Replaces isbnid_fork with isbnlib

Version 1.1.11 (2022-01-28)

• Normalize pmid + their URL identifiers

Version 1.1.10 (2022-01-11)

• Add purl.fdlp.gov as a valid PURL netloc

• Normalize ror identifiers

Version 1.1.9 (2021-08-30)

• Update ARK’s NAAN regex per https://datatracker.ietf.org/doc/html/draft-kunze-ark-28#section-2.3.

Version 1.1.8 (2020-08-13)

• Adds support for GEO and ArrayExpress identifiers.

Version 1.1.7 (2020-06-22)

• Updates Software Heritage identifiers

• Adds Research Organization Registry identifiers

• Fixes DeprctationWarnings by using raw strings for regular expressions

Version 1.1.6 (2020-05-07)

• Deprecates Python versions lower than 3.6.0. Now supporting 3.6.0 and 3.7.0.

Version 1.1.5 (2020-02-26)

• Adds support for Software Heritage identifiers.

• Fixes handling of non-digit characters in DOI detection.

Version 1.1.4 (2019-09-27)

• Adds support for ASCL identifiers.

• Fixes the ADS identifier regex to also detect lower-case author initials.

Version 1.1.3 (2019-09-17)

• Adds support for HTTPS ORCiD identifiers.

Version 1.1.2 (2019-02-12)

• Adds support for HAL identifiers.

Version 1.1.1 (2018-11-18)

• Changes URL resolution for bibcodes to use https://ui.adsabs.harvard instead of https://adsabs.harvard.edu/abs/.

• Allows choosing HTTP/HTTPS for any generated URL by idutils.to_url.

Version 1.1.0 (2018-08-17)

• Adds support for genomic identifiers: SRA, BioProject, BioSample, Ensembl, UniProt, RefSeq, GenBank/RefSeq.

• Fixes bug in bibcode detection for non-capitalized journals.

Version 1.0.1 (2018-05-02)

• Fixes bug causing invalid DOIs to be accepted.

Version 1.0.0 (2017-12-07)

• Fixes handling of unicode characters in DOIs.

• Adds support for APS style arXiv identifiers.

Version 0.2.4 (2017-01-30)

• Removes Python 3.3 from a list of supported Python versions and adds Python 3.6

• Moves from isbnid (v0.3.4) to isbnid_fork (v0.4.4) library.

Version 0.2.3 (2016-09-21)

• Adds an optional parameter in idutils.to_url to use HTTPS scheme for PID providers that support it.

• Detects and parses Handles and DOIs without the “http(s)://”, and ignores whitespace after scheme tags (eg. “doi: 10.123/456”).

Version 0.2.2 (2016-09-16)

• Fixes issue where a valid ISBN with dashes and spaces could not be normalized.

Version 0.2.1 (2016-06-17)

• Changes ISBN normalization to use isbnid instead of isbnlib. Now, importing this library will not change the default socket timeout, resulting in unwanted side effects.

Version 0.2.0 (2016-04-07)

• Changes URL resolution for DOIs to use https://doi.org instead of http://dx.doi.org according to https://www.doi.org/doi_handbook/3_Resolution.html#3.8

Version 0.1.1 (2015-07-22)

• Fixes GND validation and normalization.

• Replaces invalid package name in run-tests.sh and makes run-tests.sh file executable. One can now use docker-compose run –rm web /code/run-tests.sh to run all the CI tests (pep257, sphinx, test suite).

• Initial release of Docker configuration suitable for local developments. docker-compose build rebuilds the image, docker-compose run –rm web /code/run-tests.sh runs the test suite.

Version 0.1.0 (2015-07-02)

• First public release.