roombapy does not work with hostnames

[indagitto]

When trying to use roombapy, with hostnames (e.g. Roomba-BLID.domain or iRobot-BLID.domain) instead of IP address the commands have different results:

• roomba-password returns Exception: cannot find roomba
• roomba-discovery returns None
• roomba-connect returns Exception: cannot find roomba

The same commands and same roomba device are working when using an IP address, tested on two different devices.
Name resolution works and can ping via hostname (I've tested everything on the same machine, which is a Win10 with Python 3.9).

I assume this is intended or a limitation in the code, would it be possible to:

1. Implement queries by hostname (preferred), or
2. Ensure with a regex to accept only IP formats

[Orhideous]

roombapy discover 192.168.88.NNN works, roombapy discover iRobot-NNNNNNN.lan doesn't.