Python PIP

"pip is a de facto standard package-management system used to install and manage software packages written in Python. Many packages can be found in the default source for packages and their dependencies — Python Package Index (PyPI)."

Source: Wikipedia,

Install PIP without being root

wget --no-check-certificate -O - | python - --user
export PATH=$PATH:$HOME/.local/bin
source: thelazylog

Install modules without being root

pip install --user mercurial
source: Stackoverflow