Developing with Python-masakariClient

Project Info


For details please refer to the OpenStack IRC meetings page.


Install the prerequisites for Tox:

  • On Ubuntu or Debian:

    $ apt-get install gcc gettext python-dev libxml2-dev libxslt1-dev \

    You may need to use pip install for some packages.

  • On RHEL or CentOS including Fedora:

    $ yum install gcc python-devel libxml2-devel libxslt-devel
  • On openSUSE or SUSE linux Enterprise:

    $ zypper install gcc python-devel libxml2-devel libxslt-devel

Install python-tox:

$ pip install tox

To run the full suite of tests maintained within Masakariclient.

$ tox


The first time you run tox, it will take additional time to build virtualenvs. You can later use the -r option with tox to rebuild your virtualenv in a similar manner.

To run tests for one or more specific test environments(for example, the most common configuration of Python 2.7, Python 3.6, Python 3.7 and PEP-8), list the environments with the -e option, separated by spaces:

$ tox -e py36,py37,pep8

See tox.ini for the full list of available test environments.

Building the Documentation

The documentation is generated with Sphinx using the tox command. To create HTML docs, run the commands:

$ tox -e docs

The resultant HTML will be in the doc/build/html directory.

Release Notes

The release notes for a patch should be included in the patch. See the Project Team Guide for more information on using reno in OpenStack.

If any of the following applies to the patch, a release note is required:

  • The deployer needs to take an action when upgrading

  • The plugin interface changes

  • A new feature is implemented

  • A command or option is removed

  • Current behavior is changed

  • A security bug is fixed

Reno is used to generate release notes. Use the commands:

$ tox -e venv -- reno new <bug-,bp-,whatever>

Then edit the sample file that was created and push it with your change.

To run the commands and see results:

$ git commit  # Commit the change because reno scans git log.

$ tox -e releasenotes

At last, look at the generated release notes files in releasenotes/build/html in your browser.

Testing new code

If a developer wants to test new code (feature, command or option) that they have written, Python-masakariclient may be installed from source by running the following commands in the base directory of the project:

$ python install


$ pip install -e .

Standardize Import Format

The import order shows below:

  • {{stdlib imports in human alphabetical order}}

  • n

  • {{third-party lib imports in human alphabetical order}}

  • n

  • {{project imports in human alphabetical order}}

  • n

  • n

  • {{begin your code}}


import copy
import fixtures
from unittest import mock
import os

from osc_lib.api import auth
from osc_lib import utils

from openstackclient import shell
from openstackclient.tests import utils