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    <ol> <li><p>Documentation on virtual functions you reference is related to wrapping virtual functions which can be further overridden in python -- i.e. in python classes deriving from the c++ class. The logic is such that c++ only handles virtual resolution in c++; if it lands on the wrapper class (from which your python classes derive), <code>this-&gt;get_override(..)</code> will further look if the python class overrides that particular function.</p> <p>It is not clear whether this is really what you need (i.e. deriving python classes from c++ classes). If you only want to expose regular c++ virtual functions, virtual resolution is handled automatically.</p></li> <li><p>Further, I don't understand what kind of data your functions take. Can you give a more specific example? If you have data you want to iterate over in the c++ class already, define special python functions <code>__iter__</code>, which will return an proxy iterator object (you define the iterator class in c++ and wrap it in python as well); this proxy iterator must hold internally iteration state and define <code>__iter__</code> (returning self), <code>next</code> (returning next container item), and raise StopIteraton at the end. Such is the python iteration protocol and all usual constructs (<code>for</code> etc) will work automagically. (see e.g. <a href="http://bazaar.launchpad.net/~eudoxos/+junk/tr2/view/head:/pkg/dem/ContactContainer.hpp#L111" rel="nofollow">here</a>, iterator class <a href="http://bazaar.launchpad.net/~eudoxos/+junk/tr2/view/head:/pkg/dem/ContactContainer.hpp#L82" rel="nofollow">here</a> for an example)</p></li> <li><p>(Remark) don't pass <code>vector&lt;int&gt;</code> as argument, avoid copying with <code>const vector&lt;int&gt;&amp;</code>. Converters for <code>vector&lt;int&gt;</code> from python (if you define them) will work just fine.</p></li> </ol>
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    1. COThanks for the response. 1. Yep, I'd like the function to be overridden in python. Although I realise that might be less straightforward if the interface in python isnt the same as in c++. 2. I've edited my original post, hopefully that helps ? 3. Good idea, thanks :)
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    2. COI think it is doable even if the interface is different. According to [wrapper docs](http://www.boost.org/doc/libs/1_43_0/libs/python/doc/v2/wrapper.html), `get_override` returns object which is `None` or a callable. You could test this object yourself: if `None`, then the function was not overridden in python, and you should call the c++ one (passing whichever parameters you like); if it is not `None`, then it is a callable python object (bound method), and you can call it with parameters arranged for python.
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