gaierror: [Errno 8] nodename nor servname provided, or not known (with macOS Sierra)

问题:

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 

回答1:

There is an answer in OP's comments based on another question, which requires to edit /etc/hosts, i.e echo 127.0.0.1 $HOSTNAME >> /etc/hosts.

Alternatively, you can use socket.gethostbyname('localhost'), assuming that localhost is what you need and it is defined in your /etc/hosts.

回答2:

Same problem tome. I change the code to:

import socket socket.gethostbyname("") 

And it works now.

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