install python3

sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.8

[server]$  python3 -m pip install

Step 1: Download Python newest version from

  Python.orgwww.python.org

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

echo This is for linux. (debian/unbuntu)
sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev wget
curl -O https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tar.xz
tar -xf Python-3.7.4.tar.xz
cd Python-3.7.4
./configure --enable-optimizations
make
sudo make altinstall
python3.7 --version
cd ../

To install Python 3 on Windows, enter the following in command prompt:

Start iexplore https://www.python.org/ftp/python/3.8.3/python-3.8.3-amd64.exe

or, if you are using Mac, then entering the following in your browser
would do just fine:

https://www.python.org/ftp/python/3.8.3/python-3.8.3-macosx10.9.pkg

You cannot just pip install python3 because it is not a library.

If you want to install the latest python3:
https://www.python.org/ftp/python/3.8.2/python-3.8.2.exe 

# For macs... 
#  Apparently you don't want to upgrade 2.* just install 3.*

% brew install python3