how to update pip modules code example

Example 1: how to update a module in python

pip install [package] --upgrade

Example 2: pip upgrade package

pip install Django --upgrade

Example 3: python update installed packages

py2
$ pip install pip-review

$ pip-review --local --interactive

py3
$ pip3 install pip-review

$ py -3 -m pip_review --local --interactive

Example 4: pip upgrade package

pip install Django -U