Pyetur

Pyetur is a Python library designed to facilitate end-to-end testing of web services through a scenario-driven framework for defining sequences of HTTP requests, validations, and test orchestration. The library emphasizes readability, composability, and pluggable components to accommodate a range of testing needs.

Core concepts in Pyetur include scenarios, requests, assertions, and runners. A scenario describes a series of HTTP interactions, with support for dynamic data extraction and reuse across steps. The built-in HTTP client provides features such as automatic retries, configurable timeouts, and backoff strategies. Assertions allow checks on status codes, headers, and payload content, enabling precise verification across responses. A runner executes one or more scenarios and aggregates results into a structured report suitable for automated analysis and human review.

Installation and usage are straightforward. Pyetur is distributed via the Python Package Index and can be installed with pip install pyetur. Typical usage involves creating a Client, composing one or more Scenario objects, and running a TestRunner or integrating with testing frameworks such as pytest. Output is available as JSON or XML, with human-friendly summaries for quick inspection.

Development and ecosystem considerations include open-source licensing and community-driven development. The project supports plugins for authentication mechanisms, custom reporters, and alternative HTTP backends, enabling adaptation to different environments and requirements. While designed to be framework-agnostic, Pyetur integrates with standard Python asynchronous tooling and works well in asyncio-based codebases.