gethostname expects exactly 0 arguments 1 given

This error occurs when the gethostname() function is called with an argument, but it doesn't expect any arguments.

For example:

import socket
socket.gethostname("localhost")

In this case, the gethostname() function is called with the argument "localhost". However, the function doesn't expect any arguments, hence the error message "expects exactly 0 arguments, 1 given".

To fix this error, simply remove the argument from the gethostname() function call:

import socket
socket.gethostname()
``