In article <48c8f8ca-d8c1-4a60-ba7f-8e8b00993...@googlegroups.com>, anntzer....@gmail.com wrote:
> It is the call to gethostbyname_ex that is very slow. The call to > gethostname is quick (and returns the same string as /usr/bin/hostname). First, please stop posting with Google Groups. It makes a total mess of the quoted text. Next, what happens when you use the command-line tools (nslookup or dig) to translate your hostname to an IP address, and what happens if you then try to reverse translate that IP address back to a name? > This issue is independent of IPython: > > $ time python -c 'import socket; > print(socket.gethostbyname_ex(socket.gethostname())[2])' > ['192.168.0.102'] > python -c 0.07s user 0.02s system 0% cpu 28.190 total The real point is not that it's independent of IPython, it has nothing to do with Python at all. What you've got here is a network configuration issue. You would do better to recreate this problem with the native OS command line tools and then ask about it on a forum dedicated to your operating system. -- http://mail.python.org/mailman/listinfo/python-list
