Add the universe repository:
sudo cp -p /etc/apt/sources.list /etc/apt/sources.list_backup sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) universe" sudo apt-get update
Install python virtual environment:
sudo apt-get install python-virtualenv
Make a tempory virtual enviroment in your folder:
virtualenv env
Activate the virtualenv:
source env/bin/activate
Install the requirements:
pip install -r requirements.txt
Remove virtualenv:
rm -r env/
Uninstall python-virtualenv:
sudo apt-get remove python-virtualenv sudo apt-get autoremove
Remove the universe repository:
sudo mv /etc/apt/sources.list_backup /etc/apt/sources.list