If your company/organisation has provided a package that wraps around omniduct to provide a library of services, then a direct installation of omniduct is not required. Otherwise, you can install it using the standard Python package manager: pip. If you use Python 3, you may need to change pip references to pip3, depending on your system configuration.
pip install omniduct[<comma separated list of protocols>]
For example, if you want access to Presto and HiveServer2, you can run:
pip install omniduct[presto,hiveserver2]
Omitting the list of protocols (i.e. pip install omniduct) will mean that the external dependencies required to interface with the protocols indicated in Supported protocols will not be automatically installed. Attempts to use these protocols will throw an error with instructions as to which additional dependencies you will need to install.
To install omniduct and all possible dependencies, you can install omniduct using:
pip install omniduct[all]
This is only recommended for casual use, as dragging in unneeded dependencies could lead to complications with other packages on your machine (and is otherwise just generally messy!).