[PyQt] Connecting to base class signals in subclass

[Demetrius Cassidy]

I am not sure if this is the intended behavior, but if I subclass a QWidget
instance, and then try to connect to one of those signals in my subclass, I
get a TypeError:

>>> class MyLabel(QtGui.QLabel):
...     def __init__(self):
...             self.linkActivated.connect(self._lnkActivated)
...
...     def _lnkActivated(self, link):
...             pass
...
>>> l = MyLabel()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in __init__
TypeError: pyqtSignal must be bound to a QObject, not 'MyLabel'
>>>

Why can't I connect to my base class's signals in my subclass? 
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