Just to keep this discussion as clear as possible Mark, it was your first option that I suggest is needed. <br><br>When that is done (as it was for a subclass of float in 2.6.6) it is possible for the author of the subclass to implement commutative binary operations (like + and * that must behave the same regardless of argument order). Otherwise (as far as I can see) this cannot be done.<br>
<br><br><div class="gmail_quote">On Mon, Nov 29, 2010 at 5:04 AM, Mark Dickinson <span dir="ltr">&lt;<a href="mailto:report@bugs.python.org">report@bugs.python.org</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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Changes by Mark Dickinson &lt;<a href="mailto:dickinsm@gmail.com">dickinsm@gmail.com</a>&gt;:<br>
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</div>Removed file: <a href="http://bugs.python.org/file19820/unnamed" target="_blank">http://bugs.python.org/file19820/unnamed</a><br>
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&lt;<a href="http://bugs.python.org/issue5211" target="_blank">http://bugs.python.org/issue5211</a>&gt;<br>
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