How to replace python3 path in ubuntu?

Question

linux

Hello. A question. I decided to roll myself Python 3.8. I installed it, I'm happy with the new operator, but two problems appeared:
1. python 3.8 is launched when called in the python38 terminal, when python3 is called, python 3.6 is launched
2. I work in VSCode, and python 3.8 is not visible below, where you can select the interpreter, so it underlines the code is red and I can't run directly in VScode, only through the terminal (because usr/bin/python3.6 is selected and python3.8 is not displayed there)

Answer 1

No need to touch anything in system python. The correct solution is to create your own virtual environment for each project, with the required python version.

Answer 2

https://github.com/pyenv/pyenv

Answer 3

calling python3 starts python 3.6

it's a symlink, you can reassign it to 3.8, but don't do that