title: Ipython is working in command prompt but not in browser
body: <p>I am using a windows 8 64 bit laptop. I already have python 2.7 on my pc. So I installed Ipython using the easy_install. I can now see an ipython application file in C:\Python27\Scripts. When I run that file it opens up my cmd and I can write code. However when I say <code>Ipython notebook</code> in the cmd under the same folder it does not open up the notebook in a browser and gives the following error - </p>
  
  <pre><code>C:\Users\UserName&gt;cd C:\Python27\Scripts\
  
  C:\Python27\Scripts&gt;Ipython notebook
  Traceback (most recent call last):
    File "C:\Python27\Scripts\ipython-script.py", line 9, in &lt;module&gt;
      load_entry_point('ipython==1.2.0', 'console_scripts', 'ipython')()
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\__init__.p
  y", line 118, in start_ipython
      return launch_new_instance(argv=argv, **kwargs)
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\config\app
  lication.py", line 544, in launch_instance
      app.initialize(argv)
    File "&lt;string&gt;", line 2, in initialize
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\config\app
  lication.py", line 89, in catch_config_error
      return method(app, *args, **kwargs)
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\terminal\i
  papp.py", line 312, in initialize
      super(TerminalIPythonApp, self).initialize(argv)
    File "&lt;string&gt;", line 2, in initialize
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\config\app
  lication.py", line 89, in catch_config_error
      return method(app, *args, **kwargs)
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\core\appli
  cation.py", line 373, in initialize
      self.parse_command_line(argv)
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\terminal\i
  papp.py", line 307, in parse_command_line
      return super(TerminalIPythonApp, self).parse_command_line(argv)
    File "&lt;string&gt;", line 2, in parse_command_line
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\config\app
  lication.py", line 89, in catch_config_error
      return method(app, *args, **kwargs)
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\config\app
  lication.py", line 474, in parse_command_line
      return self.initialize_subcommand(subc, subargv)
    File "&lt;string&gt;", line 2, in initialize_subcommand
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\config\app
  lication.py", line 89, in catch_config_error
      return method(app, *args, **kwargs)
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\config\app
  lication.py", line 405, in initialize_subcommand
      subapp = import_item(subapp)
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\utils\impo
  rtstring.py", line 42, in import_item
      module = __import__(package, fromlist=[obj])
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\html\noteb
  ookapp.py", line 36, in &lt;module&gt;
      check_for_zmq('2.1.11', 'IPython.html')
    File "C:\Python27\lib\site-packages\ipython-1.2.0-py2.7.egg\IPython\utils\zmqr
  elated.py", line 37, in check_for_zmq
      raise ImportError("%s requires pyzmq &gt;= %s"%(required_by, minimum_version))
  ImportError: IPython.html requires pyzmq &gt;= 2.1.11
  
  C:\Python27\Scripts&gt;
  </code></pre>