The recommended way for installing the pynrfjprog utility is using
Python-pip
.
As a prerequisite, pip needs to be installed. For information on pip installation, see Python Packaging User Guide - Tool Recommendations. Pip will by default be included in the latest versions of Python (starting from v2.7.9) and can also be installed for older versions. For more information, see Python Documentation - Installing Python Modules.
The pynrfjprog package is published on the PyPI - the Python Package Index, and is therefore available through pip.