How to set python3 as default in Linux

To set Python3 as the default version in Linux, you can use one of several methods. Here are some steps you might follow:

Method 1:

1. Open a terminal and type the following command: alias python=python3
2. Press Enter. This sets the ‘python’ command to execute Python3 instead of Python2.

Method 2:

1. Open a terminal and type the following command: sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 1
2. Press Enter. This sets up the update-alternatives system, which allows the system to have multiple versions of a program installed and select the appropriate version automatically.

Method 3:

1. Open the .bashrc file in your home directory by running the command nano ~/.bashrc.
2. Add the following line at the end of the file alias python=python3.
3. Press CTRL+O to save the changes and CTRL+X to exit the editor.
4. Run the following command in your terminal to update your Bash shell source ~/.bashrc.

These are some common methods to set Python3 as the default version in Linux.