frontend.html.notebook: Use utils.localinterfaces.LOCALHOST

IPython/frontend/html/notebook/notebookapp.py

@@ -70,6 +70,7 b' from IPython.zmq.ipkernel import ('
     IPKernelApp
 )
 from IPython.utils.importstring import import_item
+from IPython.utils.localinterfaces import LOCALHOST
 from IPython.utils.traitlets import (
     Dict, Unicode, Integer, List, Enum, Bool,
     DottedObjectName
@@ -87,9 +88,6 b' _notebook_id_regex = r"(?P<notebook_id>\\w+-\\w+-\\w+-\\w+-\\w+)"'
 _profile_regex = r"(?P<profile>[^\/]+)" # there is almost no text that is invalid
 _cluster_action_regex = r"(?P<action>start|stop)"
 
-
-LOCALHOST = '127.0.0.1'
-
 _examples = """
 ipython notebook                       # start the notebook
 ipython notebook --profile=sympy       # use the sympy profile
@@ -610,7 +608,7 b' class NotebookApp(BaseIPythonApplication):'
         info("Use Control-C to stop this server and shut down all kernels.")
 
         if self.open_browser or self.file_to_run:
-            ip = self.ip or '127.0.0.1'
+            ip = self.ip or LOCALHOST
             try:
                 browser = webbrowser.get(self.browser or None)
             except webbrowser.Error as e:

IPython/frontend/html/notebook/tests/test_kernelmanager.py

@@ -8,6 +8,7 b' from IPython.testing import decorators as dec'
 
 from IPython.config.loader import Config
 from IPython.frontend.html.notebook.kernelmanager import MultiKernelManager
+from IPython.utils.localinterfaces import LOCALHOST
 from IPython.zmq.kernelmanager import KernelManager
 
 class TestKernelManager(TestCase):
@@ -67,7 +68,7 b' class TestKernelManager(TestCase):'
     @dec.skip_win32
     def test_tcp_cinfo(self):
         km = self._get_tcp_km()
-        self._run_cinfo(km, 'tcp', '127.0.0.1')
+        self._run_cinfo(km, 'tcp', LOCALHOST)
 
     def test_ipc_lifecycle(self):
         km = self._get_ipc_km()