release-2.2.1.rst

Overview

This file is a release note document for **pytest version 2.2.1**, a minor backward-compatible update to the `pytest` testing framework. It primarily focuses on bug fixes, minor improvements, and documentation corrections. The release note outlines key changes from the previous version (2.2.0), installation instructions, acknowledgments, and references for additional information.

This type of file is typically distributed with software packages to inform users and developers about what has changed, fixed, or improved in a new release.

Detailed Content Description

Purpose and Functionality

• Communicates the nature of the release: minor upgrade with bug fixes and small improvements.

• Highlights installation/upgrading instructions for users.

• Documents specific bugs/issues fixed in this release.

• Acknowledges contributors to the release.

• Provides references for further information.

This file does **not** contain executable code, classes, or functions; rather, it is a textual changelog and instructional document.

Section Breakdown

Header

pytest-2.2.1: bug fixes, perfect teardowns
===========================================================================

• Title line summarizing the release version and focus (bug fixes and improved teardowns).

Introduction

• States that pytest-2.2.1 is a minor backward-compatible release.

• Mentions bug fixes, minor improvements, and documentation fixes.

• Notes a dependency upgrade recommendation for the distributed testing plugin (pytest-xdist).

Reference Link

• Provides the official pytest website URL for general information:
  http://pytest.org/

Installation Instructions

pip install -U pytest # or
easy_install -U pytest

• Shows commands to install or upgrade pytest.

Acknowledgments

• Thanks contributors by name for their help in this release.

Change Log Between 2.2.0 and 2.2.1

Lists specific bugs/issues addressed:

• Issue 99: Improved error output normalization for internal errors with resultlog.

• Issue 97: Enhanced traceback output, especially when using jinja2 and cython.

• Issue 93: Fixed delayed teardowns by running final test teardown immediately; introduced nextitem parameter in test hooks.

• Collection crash fix: Resolved crashes caused by unknown-source collected items through dependency updates.

Implementation Details & Algorithms

Since this file is a release note, it does not implement algorithms or contain code logic. However, the changelog references some internal pytest improvements:

• Normalization of internal error arguments to improve error reporting.

• Improved traceback handling to better integrate with tools that manipulate Python tracebacks (e.g., jinja2, cython).

• Teardown behavior change: The final test’s teardown runs immediately rather than at session end; this involves passing a nextitem argument to hooks to indicate test sequence progression.

• Dependency update to fix crashes related to collected test items with unknown sources.

Interactions with Other Parts of the System

While this file itself does not interact with system components programmatically, it references:

• The pytest core testing framework (the main software this release note documents).

• The pytest-xdist plugin, advising users to upgrade it in line with this pytest release.

• External libraries like jinja2 and cython indirectly, due to traceback improvements.

• Dependency on an updated pylib version for stability.

Users and developers refer to this document to understand what to expect from pytest 2.2.1 and how it relates to their existing testing setup.

Usage Example

This file is for reading only and is not "used" programmatically. However, a typical user action inspired by this file is:

pip install -U pytest

To upgrade pytest to version 2.2.1 with the latest fixes.

Visual Diagram

Since this is a documentation/release note file (a utility/document file), the most appropriate diagram is a **flowchart** that shows the main sections of the file and their relationships.

flowchart TD
    A[Release Note: pytest-2.2.1] --> B[Introduction]
    A --> C[Installation Instructions]
    A --> D[Acknowledgments]
    A --> E[Change Log]
    E --> E1[Issue 99: Internal Errors Fix]
    E --> E2[Issue 97: Traceback Improvements]
    E --> E3[Issue 93: Immediate Teardowns]
    E --> E4[Collection Crash Fix]
    A --> F[References]

Summary

The [release-2.2.1.rst](/projects/286/66986) file is a structured, human-readable release note for pytest version 2.2.1. It serves as a communication tool to users and developers about the latest fixes and improvements, upgrade instructions, and acknowledgments. This file is integral to the software release process but does not contain executable code or direct system interactions beyond documentation purposes.

It complements other parts of the pytest ecosystem by guiding users on version compatibility, bug fixes, and plugin upgrades, thus supporting smooth software maintenance and usage.