I don't know how to login as sudo as this happens.

>> sudo su

>> [sudo] password for TheGamePugYT: (puts password here)

>> TheGamePugYT is not in the sudoers file. This incident will be reported.

I need to login as sudo to install python.

Python error.

>> TheGamePugYT@xshellz-free:~$ sudo apt-get install python3 python3-pip

>> [sudo] password for TheGamePugYT: (puts password here)

>> TheGamePugYT is not in the sudoers file. This incident will be reported.

Also I need to transfer files.