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22 lines
1.7 KiB
22 lines
1.7 KiB
<div class="section" id="the-del-statement">
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<span id="del"></span><h2>The <a class="reference internal" href="#del"><tt class="xref std std-keyword docutils literal"><span class="pre">del</span></tt></a> statement</h2>
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<pre id="index-18">
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<strong id="grammar-token-del_stmt">del_stmt</strong> ::= "del" <a class="reference internal" href="#grammar-token-target_list"><tt class="xref docutils literal"><span class="pre">target_list</span></tt></a>
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</pre>
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<p>Deletion is recursively defined very similar to the way assignment is defined.
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Rather than spelling it out in full details, here are some hints.</p>
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<p>Deletion of a target list recursively deletes each target, from left to right.</p>
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<p id="index-19">Deletion of a name removes the binding of that name from the local or global
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namespace, depending on whether the name occurs in a <a class="reference internal" href="#global"><tt class="xref std std-keyword docutils literal"><span class="pre">global</span></tt></a> statement
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in the same code block. If the name is unbound, a <a class="reference internal" href="../library/exceptions.html#NameError" title="NameError"><tt class="xref py py-exc docutils literal"><span class="pre">NameError</span></tt></a> exception
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will be raised.</p>
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<p id="index-20">Deletion of attribute references, subscriptions and slicings is passed to the
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primary object involved; deletion of a slicing is in general equivalent to
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assignment of an empty slice of the right type (but even this is determined by
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the sliced object).</p>
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<div class="versionchanged">
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<p><span class="versionmodified">Changed in version 3.2: </span>Previously it was illegal to delete a name from the local namespace if it
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occurs as a free variable in a nested block.</p>
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</div>
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</div>
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