Cannot open connection: Auth error. Token request failed. Invalid server response

[dside99]

Hello, just the fisrt step.

import sharepy
sharepy.connect('sharepoint.example.gr', 'user@example.gr', password='xaaxax')

I also have tried with 'https://sharepoint.example.gr'.
The error message is : "ConnectionError: HTTPSConnectionPool(host='login.microsoftonline.com', port=443): Max retries exceeded with url: /GetUserRealm.srf?login=user@example.gr&xml=1 (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fe7803f1940>: Failed to establish a new connection: [Errno -2] Name or service not known'))
"
I tried with different accounts, wrong pass but the issue remain the same.
Any idea?

[JonathanHolvey]

'Name or service not known' suggest an issue in DNS resolution for the domain you're using. Are you sure you've typed it correctly, and that you can access it in a web browser?