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<qhelp>

<overview>

<p>The <code>__getslice__</code>, <code>__setslice__</code> and <code>__delslice__</code> methods have been deprecated since Python 2.0.

In general, no class should implement these methods.

</p>

<p>

The only exceptions to this rule are classes that inherit from <code>list</code> and override <code>__getitem__</code>,

<code>__setitem__</code> or <code>__delitem__</code>.

Since <code>list</code> implements the slicing methods any class inheriting from <code>list</code> must implement the

the slicing methods to ensure correct behavior of <code>__getitem__</code>, <code>__setitem__</code> and <code>__delitem__</code>.

These exceptions to the rule will not be treated as violations.

</p>

</overview>

<recommendation>

<p>

Delete the slicing method. Any functionality should be moved to the equivalent <code>__xxxitem__</code> method:

</p>

<ul>

<li><code>__getslice__</code> should be replaced with <code>__getitem__</code></li>

<li><code>__setslice__</code> should be replaced with <code>__setitem__</code></li>

<li><code>__delslice__</code> should be replaced with <code>__delitem__</code></li>

</ul>

</recommendation>

<references>

<li>Python Language Reference: <a href="https://docs.python.org/2/reference/datamodel.html#additional-methods-for-emulation-of-sequence-types">

Additional methods for emulation of sequence types</a>.

</li>

</references>

</qhelp>