Replace existing run_tests.py script with a pytest script The existing run_test.py script is quite old, a bit restrictive, and doesn't always behave as documented. The pytest testing tool is mature, well documented, and maintained. The run_tests.py script is generating by installing py.test and running: py.tests --genscript=run_tests.py Note: to generate a script that is compatible with python2.6 the command needs to be run using python2.6

from roundup.dist.command.build import build_message_files, check_manifest
from distutils.command.install_lib import install_lib as base

class install_lib(base):

    def run(self):
        check_manifest()
        build_message_files(self)
        base.run(self)