Answers for "how to change the default python version in linux"

how to change python version on linux

#Check available versions
ls /usr/bin/python*
#Change the used version 3.5 or 3.7 etc
alias python='/usr/bin/python3.x'
#do this other thing
. ~/.bashrc
#Check version 
python --version

changing default python version ubuntu

sudo update-alternatives  --set python /usr/bin/python3.6

change default python version

sudo update-alternatives --config python