pytajc

Pytajc is an open-source Python library and command-line tool designed to simplify data transformation and validation tasks across common data formats. It provides both a programmatic API and a CLI for parsing inputs, applying transformations, validating data against schemas, and exporting results to formats such as JSON, CSV, YAML, and XML. The project emphasizes small dependencies, clear error reporting, and straightforward integration into ETL workflows.

Features

- Cross-format conversion between JSON, CSV, YAML, and XML

- Schema-based validation with optional JSON Schema compatibility

- Streaming and batch processing support

- Composable transformation pipelines and custom operators

- Plugin system for domain-specific operations

- Command-line tools for common ETL tasks

- Extensible adapters for input/output formats

- Portable, well-documented, and MIT-licensed

Architecture

Pytajc uses a modular design with a core engine that routes data between format handlers, a set of format adapters, and a transformation pipeline engine. The plugin system allows users to add domain-specific operations without modifying the core. Dependency management is kept lightweight to maximize portability across Windows, macOS, and Linux.

History

The project originated as a small open-source effort to reduce boilerplate in ETL scripting. It has since attracted community contributions, documentation improvements, and regular releases. Active maintenance is provided by volunteers, with a public changelog and issue-tracking to guide development.

See also

Data transformation, ETL, JSON, CSV, YAML, XML, Python (programming language).