WARNING:root:Message signing is disabled

[astrofrog]

This warning often appears when starting up glue:

WARNING:root:Message signing is disabled.  This is insecure and not recommended!

I think this is due to Jupyter/IPython, but I haven't figured out how to avoid it.

[jareddeutsch]

It looks like it is fixed in Jupyter 4.3.2 - ipython/ipykernel#131. As of today, anaconda is using ipykernel 4.3.1. Looks like it should be avoided with 4.3.2.