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nose-cprof

A plugin to use cProfile to profile nosetests, rather than the built-in Hotshot profiler.

Profiling tests can help track down sources of performance issues in code, especially if a synthetic test can be created to focus on the area of concern.

The output generated by this plugin can easily be browsed using pstats_viewer, or any other pstats-compatible viewer.

Getting started

Prerequisites

This is a plugin for nose, so it's useless without that installed.

Installation

pip install nose-cprof

Usage

This plugin adds some new options to nosetests:

--with-cprofile       Enable plugin cProfiler:  Use this plugin to run tests
                      using the cProfile profiler.  [NOSE_WITH_CPROFILE]
--cprofile-stats-file=FILE
                      Output file name; default "stats.dat"
--cprofile-stats-erase
                      Erase previously-collected profiling statistics before
                      run. Without this option, new profiling stats will be
                      merged with the prior contents of the output file.