How To Change Python3 To Default In Linux Mint

I have a little problem with changing python3 to default in newly installed operating system linux Mint 19.3. It was pretty easy on Ubuntu 16.04 but now I need small help here. So

Solution 1:

In your case, priority is missing, just append 1 at the end of the command like this :

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.6 1

Solution 2:

To define python3 as your default version of python on linux, you need to add a specific line to .bashrc file located in your home directory. Here is a simple method to do so through command line interface (termianl).

Run:

$ echo "alias python='python3'" >> .bashrc
$ source .bashrc

then run python --version to check if the change has applied.