environment/lib/python2.7/site-packages/IPython/core/display_trap.py
def set(self):
        """Set the hook."""
        if sys.displayhook is not self.hook:
            self.old_hook = sys.displayhook
            sys.displayhook = self.hook
def set(self):
        """Set the hook."""
        if sys.displayhook is not self.hook:
            self.old_hook = sys.displayhook
            sys.displayhook = self.hook
Set the hook.