Upgrading Python Packages

pip freeze | cut -d = -f 1 | xargs -n 1 pip search | grep -B2 'LATEST:'
pip freeze --local | grep -v '^\-e' | cut -d = -f 1  | xargs pip install -U

latest python version are using `pip2` , please refrain from using pip if you are on version 2.7.13 and above.