(susan_env)Susans-MacBook-Air:docs susantan$ make html
python autogen_config.py
Traceback (most recent call last):
  File "autogen_config.py", line 6, in <module>
    from IPython.qt.console.qtconsoleapp import IPythonQtConsoleApp
  File "/Users/susantan/Projects/ipython/IPython/qt/console/qtconsoleapp.py", line 58, in <module>
    from IPython.external.qt import QtCore, QtGui
  File "/Users/susantan/Projects/ipython/IPython/external/qt.py", line 23, in <module>
    QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts)
  File "/Users/susantan/Projects/ipython/IPython/external/qt_loaders.py", line 258, in load_qt
    api_options))
ImportError:
    Could not load requested Qt binding. Please ensure that
    PyQt4 >= 4.7 or PySide >= 1.0.3 is available,
    and only one is imported per session.

    Currently-imported Qt library:   None
    PyQt4 installed:                 False
    PySide >= 1.0.3 installed:       False
    Tried to load:                   ['pyside', 'pyqt']

make: *** [source/config/options/generated] Error 1