py.test plugin to remove stale bytecode

Description

This plugin removes stale bytecode files of the packages under test before running tests. This makes sure that Python modules -- whose source was deleted -- are not accidentally visible to the test runner anymore due to a left-over bytecode file (*.pyc, *.pyo).

Caution!

This plug-in only looks into the packages you are testing. If there is a stale bytecode file in another package it does not remove it.

Usage

To use this plugin you just have to install it, so it is accessible by the pytest you are using:

• If you are using buildout, add pytest-remove-stale-bytecode to the buildout section of your pytest runner.
• If you are using pip add it to your test requirements.

Per default, there is no output generated, but if pytest is invoked in verbose mode (-v), information about the deleted files is printed.

This plugin was inspired by a feature of zope.testrunner.