ipython broken on update to 4.0 (pip fedora 23)

after updating today to ipython 4.0, using pip, ipython notebook doesn't 
work.  I have tried checking that there is no older versions installed (and 
also rm'ing all ipython parts in ~/.local/lib/pythonxx/site-packages and re-
installing via pip).

This is fedora 23.

[nbecker@nbecker2 ~]$ ipython2 notebook
Traceback (most recent call last):
  File "/home/nbecker/.local/bin/ipython2", line 11, in <module>
    sys.exit(start_ipython())
  File "/home/nbecker/.local/lib/python2.7/site-
packages/IPython/__init__.py", line 118, in start_ipython
    return launch_new_instance(argv=argv, **kwargs)
  File "/home/nbecker/.local/lib/python2.7/site-
packages/traitlets/config/application.py", line 591, in launch_instance
    app.initialize(argv)
  File "<decorator-gen-111>", line 2, in initialize
  File "/home/nbecker/.local/lib/python2.7/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python2.7/site-
packages/IPython/terminal/ipapp.py", line 305, in initialize
    super(TerminalIPythonApp, self).initialize(argv)
  File "<decorator-gen-7>", line 2, in initialize
  File "/home/nbecker/.local/lib/python2.7/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python2.7/site-
packages/IPython/core/application.py", line 386, in initialize
    self.parse_command_line(argv)
  File "/home/nbecker/.local/lib/python2.7/site-
packages/IPython/terminal/ipapp.py", line 300, in parse_command_line
    return super(TerminalIPythonApp, self).parse_command_line(argv)
  File "<decorator-gen-4>", line 2, in parse_command_line
  File "/home/nbecker/.local/lib/python2.7/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python2.7/site-
packages/traitlets/config/application.py", line 487, in parse_command_line
    return self.initialize_subcommand(subc, subargv)
  File "<decorator-gen-3>", line 2, in initialize_subcommand
  File "/home/nbecker/.local/lib/python2.7/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python2.7/site-
packages/traitlets/config/application.py", line 418, in 
initialize_subcommand
    subapp = import_item(subapp)
  File "/home/nbecker/.local/lib/python2.7/site-
packages/ipython_genutils/importstring.py", line 31, in import_item
    module = __import__(package, fromlist=[obj])
ImportError: No module named notebook.notebookapp
[nbecker@nbecker2 ~]$ ipython3 notebook
Traceback (most recent call last):
  File "/home/nbecker/.local/bin/ipython3", line 11, in <module>
    sys.exit(start_ipython())
  File "/home/nbecker/.local/lib/python3.4/site-
packages/IPython/__init__.py", line 118, in start_ipython
    return launch_new_instance(argv=argv, **kwargs)
  File "/home/nbecker/.local/lib/python3.4/site-
packages/traitlets/config/application.py", line 591, in launch_instance
    app.initialize(argv)
  File "<decorator-gen-111>", line 2, in initialize
  File "/home/nbecker/.local/lib/python3.4/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python3.4/site-
packages/IPython/terminal/ipapp.py", line 305, in initialize
    super(TerminalIPythonApp, self).initialize(argv)
  File "<decorator-gen-7>", line 2, in initialize
  File "/home/nbecker/.local/lib/python3.4/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python3.4/site-
packages/IPython/core/application.py", line 386, in initialize
    self.parse_command_line(argv)
  File "/home/nbecker/.local/lib/python3.4/site-
packages/IPython/terminal/ipapp.py", line 300, in parse_command_line
    return super(TerminalIPythonApp, self).parse_command_line(argv)
  File "<decorator-gen-4>", line 2, in parse_command_line
  File "/home/nbecker/.local/lib/python3.4/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python3.4/site-
packages/traitlets/config/application.py", line 487, in parse_command_line
    return self.initialize_subcommand(subc, subargv)
  File "<decorator-gen-3>", line 2, in initialize_subcommand
  File "/home/nbecker/.local/lib/python3.4/site-
packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/home/nbecker/.local/lib/python3.4/site-
packages/traitlets/config/application.py", line 418, in 
initialize_subcommand
    subapp = import_item(subapp)
  File "/home/nbecker/.local/lib/python3.4/site-
packages/ipython_genutils/importstring.py", line 31, in import_item
    module = __import__(package, fromlist=[obj])
ImportError: No module named 'notebook'
[nbecker@nbecker2 ~]$