Ipython requires pymzq but already installed - jupyter-notebook

Question

I am trying to install ipython notebook on my mac OS 10.8.5 but it is telling me that I don't have pyzmq but I have already installed that using sudo pip install, and when I pip freeze, pyzmq is there. I have pyzmq version 14.
How can I fix this problem so that ipython will run in my browser?
Traceback (most recent call last):
File "/usr/local/bin/ipython", line 11, in <module>
sys.exit(start_ipython())
File "/Library/Python/2.7/site-packages/IPython/__init__.py", line 120, in start_ipython
return launch_new_instance(argv=argv, **kwargs)
File "/Library/Python/2.7/site-packages/IPython/config/application.py", line 563, in launch_instance
app.initialize(argv)
File "<string>", line 2, in initialize
File "/Library/Python/2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
return method(app, *args, **kwargs)
File "/Library/Python/2.7/site-packages/IPython/terminal/ipapp.py", line 321, in initialize
super(TerminalIPythonApp, self).initialize(argv)
File "<string>", line 2, in initialize
File "/Library/Python/2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
return method(app, *args, **kwargs)
File "/Library/Python/2.7/site-packages/IPython/core/application.py", line 381, in initialize
self.parse_command_line(argv)
File "/Library/Python/2.7/site-packages/IPython/terminal/ipapp.py", line 316, in parse_command_line
return super(TerminalIPythonApp, self).parse_command_line(argv)
File "<string>", line 2, in parse_command_line
File "/Library/Python/2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
return method(app, *args, **kwargs)
File "/Library/Python/2.7/site-packages/IPython/config/application.py", line 475, in parse_command_line
return self.initialize_subcommand(subc, subargv)
File "<string>", line 2, in initialize_subcommand
File "/Library/Python/2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
return method(app, *args, **kwargs)
File "/Library/Python/2.7/site-packages/IPython/config/application.py", line 406, in initialize_subcommand
subapp = import_item(subapp)
File "/Library/Python/2.7/site-packages/IPython/utils/importstring.py", line 42, in import_item
module = __import__(package, fromlist=[obj])
File "/Library/Python/2.7/site-packages/IPython/html/notebookapp.py", line 40, in <module>
check_for_zmq('2.1.11', 'IPython.html')
File "/Library/Python/2.7/site-packages/IPython/utils/zmqrelated.py", line 37, in check_for_zmq
raise ImportError("%s requires pyzmq >= %s"%(required_by, minimum_version))
ImportError: IPython.html requires pyzmq >= 2.1.11