How to test if connection to server actually works?

Hi there,

is there a way how I can reliably test if the connection to my server actually works?

The problem is the following:

When I use the **wrong** password for my nextcloud user, 

`nxc.get_file(someDirectory)`

returns None.

When I use the right password for my nextcloud user, 

`nxc.get_file(someDirectoryThatDoesNOTexist)`

also returns None.

Thanks!