Getting output with IPython Notebook

Question

When I launch IPython Notebook I can navigate to it and enter code. However, nothing is ever echo'd back to the IPython Notebook interface.

I know the server is getting the queries (from --debug output) and responding to them it's just never giving me output in my IPython Notebook window.

I am running Python 2.6.6 and Windows 7

I am at a loss currently on how to get this notebook thing to work.

Here is a screencast of me trying (unsuccessfully) to get output:

http://screencast.com/t/TwJ2ZmGnT

Even if you don't know what's wrong, any pointers on how to further debug my problems :(

So far I have run the test chatclient for tornado, https://github.com/facebook/tornado/tree/master/demos/websocket, successfully.

And also the test scripts for pyzmq, https://github.com/zeromq/pyzmq/blob/master/examples/poll/reqrep.py, ran successfully.

Answer 1

The return output to the notebook was being blocked by Sophos Endpoint Security and Control.

Disabling "Sophos Web Intelligence Service" in services.msc worked, but it was not ideal since it turns off my web intelligence or whatever ... I don't really want to make myself more susceptible to bad stuff...

So the solution is to:

1. Open your Sophos Endpoint Security and Control Panel from your tray or start menu.

2. Select "Configure" -> "Anti-virus" -> "Authorization" from the menu at the top.

3. Select the websites tab.

4. Click the "Add" button and add 127.0.0.1 and localhost to the "Authorized websites" list.

5. Restart the computer

6. Output works now :)

Answer 2

I am in the same situation as the OP and just found out that the IPython notebook works (without disablying Sophos) when it is started with

ipython notebook --ip=localhost