Python で非バインド メソッドを動的にバインドするにはどうすればよいですか?

<code class="python">class MyWidget(wx.Window):
    buttons = [
        ("OK", OnOK),
        ("Cancel", OnCancel)
    ]

    def setup(self):
        for text, handler in MyWidget.buttons:
            b = wx.Button(parent, label=text).bind(wx.EVT_BUTTON, handler)</code>

<code class="python">bound_handler = handler.__get__(self, MyWidget)</code>

<code class="python">setattr(self, handler.__name__, bound_handler)</code>

<code class="python">def bind(instance, func, as_name=None):
    """
    Bind the function *func* to *instance*, with either provided name *as_name*
    or the existing name of *func*. The provided *func* should accept the 
    instance as the first argument, i.e. "self".
    """
    if as_name is None:
        as_name = func.__name__
    bound_method = func.__get__(instance, instance.__class__)
    setattr(instance, as_name, bound_method)
    return bound_method</code>

<code class="python">bind(something, double)
something.double()  # returns 42</code>