prov

A Python implementation of the W3C PROV Data Model, with import and export in PROV-N, PROV-JSON, PROV-JSONLD, PROV-XML and PROV-O (RDF). It is MIT-licensed, needs Python 3.11 or later, and is documented at .

Install

pip install prov

PROV-JSON, PROV-N and PROV-JSONLD need nothing else; PROV-XML, PROV-O and the graph tools each need an extra, listed on the installation page.

Quick start

import prov.model as pm
doc = pm.ProvDocument()
doc.set_default_namespace("https://example.org/")
doc.entity("report")
doc.activity("analysis")
doc.wasGeneratedBy("report", "analysis")
print(doc.get_provn())
doc.serialize("report.json")

document
  default <https://example.org/>
entity(report)
  activity(analysis, -, -)
  wasGeneratedBy(report, analysis, -)
endDocument

The tutorial continues from here.

Features

• In-memory classes for every PROV-DM record type, readable from and printable as

• Serialization to and from PROV-N,

• Export to graphical formats such as PDF, PNG and SVG through Graphviz.
• Conversion to and from a NetworkX MultiDiGraph.
• PROV-N syntax highlighting through a Pygments lexer, with the pygments extra.
• Command-line tools, prov-convert and prov-compare.