Can't access data from IPv6 NFS server

When trying to access IPv6 NFS server we hit following issue:

  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\pyNfsClient\rpc.py", line 149, in connect
    self.client.connect((self.host, self.port))
socket.gaierror: [Errno 11001] getaddrinfo failed