Managing Python dependencies

• Use virtualenv tool to create isolated python environments.
• Use pip package manager to manage python packages.

Installing new packages

• With virtualenv activated use pip install <package-name> to install a new package.
• Use pip freeze > requirements.txt to update project package requirements.

Updating packages

• Use pip list --outdated | cut -d' ' -f1 | xargs pip install --upgrade && pip freeze > requirements.txt to update all packages.