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"""Simple utility for building a list of local IPs using the socket module.
This module defines two constants:
LOCALHOST : The loopback interface, or the first interface that points to this
machine. It will *almost* always be '127.0.0.1'
LOCAL_IPS : A list of IP addresses, loopback first, that point to this machine.
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2010-2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import socket
#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
LOCAL_IPS = []
try:
LOCAL_IPS = socket.gethostbyname_ex('localhost')[2]
except socket.gaierror:
pass
try:
LOCAL_IPS.extend(socket.gethostbyname_ex(socket.gethostname())[2])
except socket.gaierror:
pass
# include all-interface aliases: 0.0.0.0 and ''
LOCAL_IPS.extend(['0.0.0.0', ''])
LOCALHOST = LOCAL_IPS[0]
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