[NotebookApp] Using existing profile dir: u'/Users/RajuTxfr2/.ipython/profile_default'
[NotebookApp] Serving notebooks from /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
[NotebookApp] The IPython Notebook is running at: http://127.0.0.1:8888/
[NotebookApp] Use Control-C to stop this server and shut down all kernels.
[NotebookApp] Using MathJax from CDN: http://cdn.mathjax.org/mathjax/latest/MathJax.js
[NotebookApp] Kernel started: 3a1ff8b7-c75f-4260-8a0a-fbbdd064c779
[NotebookApp] Connecting to: tcp://127.0.0.1:50942
[NotebookApp] Connecting to: tcp://127.0.0.1:50943
[NotebookApp] Connecting to: tcp://127.0.0.1:50945
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named zmq.ipkernel
[NotebookApp] Kernel 3a1ff8b7-c75f-4260-8a0a-fbbdd064c779 failed to respond to heartbeat