# Owlready2

> Owlready2 is a package for ontology-oriented programming in Python

**Wikidata**: [Q116924857](https://www.wikidata.org/wiki/Q116924857)  
**Source**: https://4ort.xyz/entity/owlready2

## Summary
Owlready2 is a Python package designed for ontology-oriented programming. It functions as a semantic web software application and application programming interface (API) that allows for ontology modelling, knowledge graph maintenance, and programmatic reasoning.

## Key Facts
*   **Classification:** Owlready2 is a Python package, a piece of software, and a semantic web application programming interface (API).
*   **Primary Language:** The package is written in the Python programming language.
*   **Core Functions:** It is used for ontology modelling, knowledge graph querying, knowledge graph maintenance, and programmatic reasoning.
*   **Repository:** The source code is hosted on Bitbucket at `https://bitbucket.org/jibalamy/owlready2`.
*   **Distribution:** It is available as a project on the Python Package Index (PyPI) under the name "owlready2".
*   **License:** The software operates under a proprietary license and is copyrighted.
*   **Dependencies:** The package requires or runs on the Python software package `text2term`.

## FAQs
### Q: What programming language is Owlready2 written in?
A: Owlready2 is written in Python. It is distributed as a standard Python package via PyPI.

### Q: What are the primary use cases for Owlready2?
A: It is primarily used for ontology modelling, knowledge graph API interactions, programmatic reasoning, and the maintenance and querying of knowledge graphs.

### Q: Where is the source code for Owlready2 hosted?
A: The source code repository is located on Bitbucket at `https://bitbucket.org/jibalamy/owlready2`.

## Why It Matters
Owlready2 serves as a critical bridge between conventional Python development and the Semantic Web. By enabling ontology-oriented programming, it allows developers to manipulate ontologies and knowledge graphs natively within Python code, rather than relying on external reasoning engines or disparate tools. This integration facilitates "programmatic reasoning," automating logical classification and high-level data construction directly inside the application workflow.

The tool is particularly significant in the biomedical field, as indicated by its description in academic sources like "Owlready: Ontology-oriented programming in Python with automatic classification and high level constructs for biomedical ontologies." It simplifies complex data structuring tasks, making knowledge graph maintenance more accessible to software engineers.

## Notable For
*   **Ontology-Oriented Programming:** Specifically designed to integrate ontology manipulation into the Python programming paradigm.
*   **Biomedical Applications:** Cited in research for providing high-level constructs useful for biomedical ontologies.
*   **Automatic Classification:** Capable of performing automatic classification tasks within the programming environment.
*   **Semantic Web Integration:** Acts as a dedicated API for semantic web software interactions.

## Body
### Development and Technical Classification
Owlready2 is classified as an instance of a Python package, general software, and semantic web software. It is written entirely in Python, a general-purpose programming language. The project is copyrighted and operates under a proprietary license. Development is tracked via a source code repository hosted on Bitbucket.

### Functionality and Application
The software provides an application programming interface (API) tailored for the semantic web. Its capabilities include:
*   **Ontology Modelling:** Creating and structuring ontological data.
*   **Knowledge Graph Operations:** Facilitating the maintenance, querying, and management of knowledge graphs.
*   **Reasoning:** Enabling programmatic reasoning to infer new knowledge or classify data automatically.

The package has been described in academic and technical literature, including the "OntoCommons Report D4.3" and the "awesome RDF github page," for its utility in high-level construct creation.

### Dependencies and Requirements
Owlready2 is designed to run on Python. The package database lists `text2term` as a related component or requirement for the software's operation. It is distributed for installation via the Python Package Index (PyPI) under the project name `owlready2`.

## References

1. [Source](https://pypi.org/project/owlready2)