Almost positive the answer is yes, but I thought I would ask. I'm having a difficult time connecting a PythonAnywhere database to Tableau via PuTTY,, and asked a question about it on stackoverflow.
A commenter asked if you all accept connections of the type
username@localhost. Unless I'm mistaken the answer is yes, but I thought I would double check since it was suggested on that thread. He mentioned it might be a reason a connection cannot be established via PuTTY.