update pip packages code example

Example 1: update all pip packages

pip freeze | %{$_.split('==')[0]} | %{pip install --upgrade $_}

Example 2: pip upgrade package

pip install Django --upgrade

Example 3: how to update pip

#for updating pip type the following command in terminal or cmd or powershell
python -m pip install --upgrade pip

Example 4: 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 5: update pip

sudo pip3 install --upgrade pip

Example 6: pip upgrade package

pip install Django -U