Starts interactive session. Similar to keyboard command in matlab.
    Wrapper around IPython.embed

def embed(parent_locals=None, parent_globals=None, exec_lines=None,
          remove_pyqt_hook=True, N=0):
    """
    Starts interactive session. Similar to keyboard command in matlab.
    Wrapper around IPython.embed

    """
    import utool as ut
    from functools import partial
    import IPython

    if parent_globals is None:
        parent_globals = get_parent_frame(N=N).f_globals
    if parent_locals is None:
        parent_locals = get_parent_frame(N=N).f_locals

    stackdepth = N  # NOQA
    getframe = partial(ut.get_parent_frame, N=N)  # NOQA

    # exec(execstr_dict(parent_globals, 'parent_globals'))
    # exec(execstr_dict(parent_locals,  'parent_locals'))
    print('')
    print('================')
    print(ut.bubbletext('EMBEDDING'))
    print('================')
    print('[util] embedding')
    try:
        if remove_pyqt_hook:
            try:
                import guitool
                guitool.remove_pyqt_input_hook()
            except (ImportError, ValueError, AttributeError) as ex:
                #print(ex)
                printex(ex, iswarning=True)
                pass
            # make qt not loop forever (I had qflag loop forever with this off)
    except ImportError as ex:
        print(ex)

    #from IPython.config.loader import Config
    # cfg = Config()
    #config_dict = {}
    #if exec_lines is not None:
    #    config_dict['exec_lines'] = exec_lines
    #IPython.embed(**config_dict)
    print('[util]  Get stack location with: ')
    print('[util] ut.get_parent_frame(N=8).f_code.co_name')
    print('[util] set EXIT_NOW or qqq to True(ish) to hard exit on unembed')
    #print('set iup to True to draw plottool stuff')
    print('[util] call %pylab qt4 to get plottool stuff working')
    once = True
    # Allow user to set iup and redo the loop
    while once or vars().get('iup', False):
        if not once:
            # SUPER HACKY WAY OF GETTING FIGURES ON THE SCREEN BETWEEN UPDATES
            #vars()['iup'] = False
            # ALL YOU NEED TO DO IS %pylab qt4
            print('re-emebeding')
            #import plottool as pt
            #pt.update()
            #(pt.present())
            for _ in range(100):
                time.sleep(.01)

        once = False
        #vars().get('iup', False):
        print('[util] calling IPython.embed()')
        """
        Notes:
            /usr/local/lib/python2.7/dist-packages/IPython/terminal/embed.py
            IPython.terminal.embed.InteractiveShellEmbed

            # instance comes from  IPython.config.configurable.SingletonConfigurable.instance
        """
        #c = IPython.Config()
        #c.InteractiveShellApp.exec_lines = [
        #    '%pylab qt4',
        #    '%gui qt4',
        #    "print 'System Ready!'",
        #]
        #IPython.embed(config=c)
        parent_ns = parent_globals.copy()
        parent_ns.update(parent_locals)
        locals().update(parent_ns)
        try:
            IPython.embed()
        except RuntimeError as ex:
            ut.printex(ex, 'Failed to open ipython')
        #config = IPython.terminal.ipapp.load_default_config()
        #config.InteractiveShellEmbed = config.TerminalInteractiveShell
        #module = sys.modules[parent_globals['__name__']]
        #config['module'] = module
        #config['module'] = module
        #embed2(stack_depth=N + 2 + 1)
        #IPython.embed(config=config)
        #IPython.embed(config=config)
        #IPython.embed(module=module)
        # Exit python immediately if specifed
        if vars().get('EXIT_NOW', False) or vars().get('qqq', False):
            print('[utool.embed] EXIT_NOW specified')
            sys.exit(1)