sudo apt-get install git
sudo apt-get install python3-tk
sudo apt-get install python-xlsxwriter
https://stackoverflow.com/questions/29934032/virtualenv-python-3-ubuntu-14-04-64-bit
Activate a environment:
pip3 install ricecooker
git clone https://github.com/swapnil106111/Phet-Metadata.git
cd Phet-Metadata
python phet.py