update version of python code example

Example 1: upgrade python version mc

brew install python3
brew update && brew upgrade python
alias python=/usr/local/bin/python3

Example 2: command to upgrade python version

python -m pip install pip
#or
python -m pip install –upgrade pip
python -m pip install --upgrade pip

Example 3: download python

Step 1: Download Python newest version from

 https://www.python.org/downloads/

Step 2:Install Python
Step 3:Download Pycharm Community free version
Step 4:Install and open Pycharm
Step 5:Write print("Hello New World")
  //Hurray you are about to start python

Example 4: pip change python version

pip upgrade -pip