Add script and readme to repository

Author: evanottinger

README.md

@@ -1,2 +1,5 @@
 # update-ubuntu-python
 A script to install the most up-to-date branch of Python on Ubuntu.
+
+# usage
+- Run as root.

update-ubuntu-python.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+# Ottinger Digital Labs, LLC
+# 
+# Author: Evan Ottinger  @OttySec
+# 
+# Description: A script to update Python3 to the latest
+# version on Ubuntu.
+#
+# Not guaranteed, use at your own risk, yadayada.
+
+## Add the deadsnakes ppa branch to the apt repository
+add-apt-repository ppa:deadsnakes/ppa
+
+## Update the apt database
+apt update
+
+## Install the latest version of Python
+apt install python3.10
+
+## Make Python3.10 the default version
+update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.8 1
+update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.10 2
+
+## Remove the default version of Python
+apt remove python3.8
+apt autoremove
+
+## Fix pip3
+apt install python3.10-distutils
+curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
+python3.10 get-pip.py
+rm get-pip.py
+
+## Fix venv
+apt install python3.10-venv
+
+## Fix Python3-apt
+apt remove --purge python3-apt
+apt autoremove
+
+## Fix link to Python3
+update-alternatives --config python3