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<TITLE>RE: [Python-Dev] Rationale for sum()'s design?</TITLE>
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<P><FONT SIZE=2>[Guido van Rossum]</FONT>


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<P><FONT SIZE=2>#- &gt; 1. When omitting the second argument, would supplying an </FONT>


<BR><FONT SIZE=2>#- empty list return 0,</FONT>
<BR><FONT SIZE=2>#- &gt; None or raise an exception?</FONT>
<BR><FONT SIZE=2>#- </FONT>
<BR><FONT SIZE=2>#- Good question...</FONT>
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<P><FONT SIZE=2>I'd go for None:</FONT>


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<P><FONT SIZE=2>- Is a good default for a non-existing argument.</FONT>


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<P><FONT SIZE=2>- If won't get None from sum() in other case (unless you do sum(None), but you should be aware of that).</FONT>


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<P><FONT SIZE=2>.&nbsp;&nbsp;&nbsp; Facundo</FONT>


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<P><FONT SIZE=2>Bitácora De Vuelo: <A HREF="http://www.taniquetil.com.ar/plog" TARGET="_blank">http://www.taniquetil.com.ar/plog</A></FONT>


<BR><FONT SIZE=2>PyAr - Python Argentina: <A HREF="http://pyar.decode.com.ar/" TARGET="_blank">http://pyar.decode.com.ar/</A></FONT>
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