SHELL

linux set python 3 as default

1. Check current version:
$ python --version
2. get root permissions:
$ sudo su
3. set python3 as default:
$ update-alternatives --install /usr/bin/python python /usr/bin/python3 1
4. Done. (Check by $ python --version)

make python3 as default in linux

#its work 100%
#in python 3.8 you can use your python version

sudo ln -s /usr/bin/python3.8 /usr/bin/python

how to set default python version linux

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.<version you dont want default> 1
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.<version# you want default (ex:3.6)> 2

sudo update-alternatives --config python