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    <p>You can just use the bound method object itself:</p> <pre><code>tasks = [a.request for a in self.types["social"]] # ^^^^^^^^^ grabbers = executeChainResults(tasks, [(query, 0)] * len(tasks)) # ^^^^^^^^^^^^^^^^^^^^^^^^^ </code></pre> <p>If you insist on calling your methods through the base class you could also do it like this:</p> <pre><code>from abc import ABCMeta from functools import wraps def virtualmethod(method): method.__isabstractmethod__ = True @wraps(method) def wrapper(self, *args, **kwargs): return getattr(self, method.__name__)(*args, **kwargs) return wrapper class IBase(object): __metaclass__ = ABCMeta @virtualmethod def my_method(self, x, y): pass class AddImpl(IBase): def my_method(self, x, y): return x + y class MulImpl(IBase): def my_method(self, x, y): return x * y items = [AddImpl(), MulImpl()] for each in items: print IBase.my_method(each, 3, 4) b = IBase() # &lt;-- crash </code></pre> <p>Result:</p> <pre><code>7 12 Traceback (most recent call last): File "testvirtual.py", line 30, in &lt;module&gt; b = IBase() TypeError: Can't instantiate abstract class IBase with abstract methods my_method </code></pre> <p>Python doesn't support interfaces as e.g. Java does. But with the <code>abc</code> module you can ensure that certain methods must be implemented in subclasses. Normally you would do this with the <code>abc.abstractmethod()</code> decorator, but you still could not call the subclasses method through the base class, like you intend. I had a similar question once and I had the idea of the <code>virtualmethod()</code> decorator. It's quite simple. It essentially does the same thing as <code>abc.abstratmethod()</code>, but also redirects the call to the subclasses method. The specifics of the <code>abc</code> module can be found in <a href="http://docs.python.org/library/abc.html" rel="nofollow">the docs</a> and in <a href="http://www.python.org/dev/peps/pep-3119/" rel="nofollow">PEP3119</a>.</p> <p>BTW: I assume you're using Python >= 2.6.</p>
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