Installing Numdifftools

We’ll get started by setting up our environment.

Requirements

Numdifftools requires numpy 1.9 or newer, scipy 0.8 or newer, and Python 2.7 or 3.3 or newer. This tutorial assumes you are using Python 3. Optionally you may also want to install Algopy 0.4 or newer and statsmodels 0.6 or newer in order to be able to use their easy to use interfaces to their derivative functions.

Your working environment

We’re going to assume that you have a reasonably recent version of virtualenv installed and that you have some basic familiarity with it.

Create and activate a virtual environment

python3.6 -m venv env   # Python 2 usage: virtualenv env
source env/bin/activate

Note that if you’re using Windows, to activate the virtualenv you’ll need:

env\Scripts\activate

Update pip inside the virtual environment

pip is the Python installer. Make sure yours is up-to-date, as earlier versions can be less reliable:

pip install --upgrade pip

Numdifftools installation

To install numdifftools, simply type:

pip install djangocms-installer

to get the lastest stable version. Using pip also has the advantage that all requirements are automatically installed.

Unit tests

To test if the toolbox is working paste the following in an interactive python session:

import numdifftools as nd nd.test(‘–doctest-modules’, ‘–disable-warnings’)

If the result show no errors, you now have installed a fully functional toolbox. Congratulations!