[Notebook] Ipython Kernel does not start if disconnected from internet(/network?)

[groakat]

Hi,

If I am not connected to the internet, I cannot execute "ipython notebook". sucessfully.

I get the following error.
gaierror: [Errno -9] Address family for hostname not supported

(full traceback here: http://pastebin.com/sfEgXay8)

If I am connected to the internet, everything works as expected. I do not have a network available that is not connected to the internet, to test if a network connection or internet is required. (I suspect its just a network connection that is required)

[minrk]

Do you have any IPython config? Try starting the notebook with --debug.

[groakat]

$ ipython notebook --debug
[NotebookApp] Config changed:
[NotebookApp] {'Application': {'log_level': 10}}
[NotebookApp] Using existing profile dir: u'/home/peter/.config/ipython/profile_default'
[NotebookApp] Searching path [u'/home/peter/code/pyTools/notebooks', u'/home/peter/.config/ipython/profile_default'] for config files
[NotebookApp] Attempting to load config file: ipython_config.py
[NotebookApp] Loaded config file: /home/peter/.config/ipython/profile_default/ipython_config.py
[NotebookApp] Attempting to load config file: ipython_notebook_config.py
[NotebookApp] Loaded config file: /home/peter/.config/ipython/profile_default/ipython_notebook_config.py
[NotebookApp] Serving notebooks from /home/peter/code/pyTools/notebooks
[NotebookApp] Adding cluster profile 'default'
... now traceback as before

I made one default profile (resides in ~/.config/ipython/profile_default/). I do not remember changing anything in this profile. But I am happy to provide any files you need. I had a script in startup (thats why I made the profile) but if I remove it from the startup directory, I still get the same error.

[minrk]

try:

from IPython.utils.localinterfaces import LOCALHOST, LOCAL_IPS, PUBLIC_IPS
print LOCALHOST, LOCAL_IPS, PUBLIC_IPS

[juliantaylor]

this is due to the use of AI_ADDRCONFIG in tornado, see tornadoweb/tornado#593