Reference from OpenNMT Official Site
This manual will guide you through openNMT installation using PyTorch.
We assume that you have python3 already installed and ‘pip3’ the python3 package installer and your OS is assumed to be Linux(ideally Ubuntu)
Step1 Install PyTorch
pip3 install torch torchvision
If you are having python2 version then you may use the below command.
pip install torch torchvision
While this package downloads and installs you may have a cup of tea as this will take a while. Remember you need to have good internet connection as this package is about 582.5MB.
Step2 Clone the OpenNMT-py repository
git clone https://github.com/OpenNMT/OpenNMT-py
Step3 Install required libraries
pip3 install -r requirements.txt
For python2 use
pip install -r requirements.txt
Thats it now you are ready to take off. To get familiarize about how to use openNMT follow the link