socket.gethostbyname(socket.gethostname()) worked well on OS X El Capitan. However, it's not working now after the Mac updated to macOS Sierra.
Thanks!
import socket
socket.gethostbyname(socket.gethostname())
Traceback (most recent call last):
File "<pyshell#26>", line 1, in <module>
socket.gethostbyname(socket.gethostname())
gaierror: [Errno 8] nodename nor servname provided, or not known
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