Perhaps the desired functionality can be spelled as a method? Would it be easy to implement?<div><br></div><div>--Guido<span></span><br><br>On Wednesday, December 26, 2012, Terry Reedy  wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On 12/25/2012 8:56 AM, Ram Rachum wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
When I have an OrderedDict, I want to be able to delete a slice of it. I<br>
want to be able to do:<br>
<br>
     del ordered_dict[:3]<br>
<br>
To delete the first 3 items, like I would do in a list.<br>
<br>
Is there any reason why this shouldn&#39;t be implemented?<br>
</blockquote>
<br>
An OrderedDict is a mapping (has the mapping api) with a defined iteration order (the order of entry). It is not a sequence and does not have the sequence api. Indeed, a DictList is not possible because dl[2] would look for the item associated with 2 as a key rather than 2 as a position. So od[2:3] would *not* be the same as od[2], violating the usually properly of within-sequence length-1 slices.<br>

<br>
-- <br>
Terry Jan Reedy<br>
<br>
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</blockquote></div><br><br>-- <br>--Guido van Rossum (<a href="http://python.org/~guido">python.org/~guido</a>)<br>