The Apache Ossie Python package provides Pydantic v2 models for the Apache Ossie semantic model specification. It is the shared foundation used by Apache Ossie converters to parse, construct, validate, and serialize Ossie documents from Python application.
Each OssieDocument is one semantic model: name, datasets, relationships,
and metrics sit at the root alongside version.
Construct documents with OssieDocument(name="sales", datasets=[...]) and access
their datasets as document.datasets. JSON and YAML serialization use the same
flat shape, with version serialized first when included. The former
semantic_model wrapper is rejected. Unwrap old
single-model documents and split multi-model documents into separate files,
preserving model contents and setting version in each file before loading them.
Use OssieDocument for models embedded in ontology maps.
- Python 3.11 or later
- uv >= 0.9.0
uv syncuv build