Install dependency

sudo apt-get install -y libigraph0-dev libcairo2-dev libjpeg-dev libgif-dev

Install pip package

virtualenv -p python3 .venv
source .venv/bin/activate
pip install -r requirements.txt

How to merge your branch to master

git checkout your-branch
git merge master
git checkout master
git merge your-branch

How to create new branch

git checkout branch-you-want-to-work-from
git checkout -b your-branch