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<section id="slice-objects">
<span id="id1"></span><h1>Slice Objects<a class="headerlink" href="#slice-objects" title="Permalink to this heading">¶</a></h1>
<dl class="c var">
<dt class="sig sig-object c" id="c.PySlice_Type">
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><span class="n"><span class="pre">PyTypeObject</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PySlice_Type</span></span></span><a class="headerlink" href="#c.PySlice_Type" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>The type object for slice objects. This is the same as <a class="reference internal" href="../library/functions.html#slice" title="slice"><code class="xref py py-class docutils literal notranslate"><span class="pre">slice</span></code></a> in the
Python layer.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PySlice_Check">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PySlice_Check</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">ob</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_Check" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><p>Return true if <em>ob</em> is a slice object; <em>ob</em> must not be <code class="docutils literal notranslate"><span class="pre">NULL</span></code>. This
function always succeeds.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PySlice_New">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PySlice_New</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">start</span></span>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">stop</span></span>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">step</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_New" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><em class="refcount">Return value: New reference.</em><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Return a new slice object with the given values. The <em>start</em>, <em>stop</em>, and
<em>step</em> parameters are used as the values of the slice object attributes of
the same names. Any of the values may be <code class="docutils literal notranslate"><span class="pre">NULL</span></code>, in which case the
<code class="docutils literal notranslate"><span class="pre">None</span></code> will be used for the corresponding attribute. Return <code class="docutils literal notranslate"><span class="pre">NULL</span></code> if
the new object could not be allocated.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PySlice_GetIndices">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PySlice_GetIndices</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">slice</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="n"><span class="pre">length</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">start</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">stop</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">step</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_GetIndices" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Retrieve the start, stop and step indices from the slice object <em>slice</em>,
assuming a sequence of length <em>length</em>. Treats indices greater than
<em>length</em> as errors.</p>
<p>Returns <code class="docutils literal notranslate"><span class="pre">0</span></code> on success and <code class="docutils literal notranslate"><span class="pre">-1</span></code> on error with no exception set (unless one of
the indices was not <code class="docutils literal notranslate"><span class="pre">None</span></code> and failed to be converted to an integer,
in which case <code class="docutils literal notranslate"><span class="pre">-1</span></code> is returned with an exception set).</p>
<p>You probably do not want to use this function.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">3.2 sürümünde değişti: </span>The parameter type for the <em>slice</em> parameter was <code class="docutils literal notranslate"><span class="pre">PySliceObject*</span></code>
before.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PySlice_GetIndicesEx">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PySlice_GetIndicesEx</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">slice</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="n"><span class="pre">length</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">start</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">stop</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">step</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">slicelength</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_GetIndicesEx" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Usable replacement for <a class="reference internal" href="#c.PySlice_GetIndices" title="PySlice_GetIndices"><code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_GetIndices()</span></code></a>. Retrieve the start,
stop, and step indices from the slice object <em>slice</em> assuming a sequence of
length <em>length</em>, and store the length of the slice in <em>slicelength</em>. Out
of bounds indices are clipped in a manner consistent with the handling of
normal slices.</p>
<p>Returns <code class="docutils literal notranslate"><span class="pre">0</span></code> on success and <code class="docutils literal notranslate"><span class="pre">-1</span></code> on error with exception set.</p>
<div class="admonition note">
<p class="admonition-title">Not</p>
<p>This function is considered not safe for resizable sequences.
Its invocation should be replaced by a combination of
<a class="reference internal" href="#c.PySlice_Unpack" title="PySlice_Unpack"><code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_Unpack()</span></code></a> and <a class="reference internal" href="#c.PySlice_AdjustIndices" title="PySlice_AdjustIndices"><code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_AdjustIndices()</span></code></a> where</p>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">PySlice_GetIndicesEx</span><span class="p">(</span><span class="n">slice</span><span class="p">,</span><span class="w"> </span><span class="n">length</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">start</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">stop</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">step</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">slicelength</span><span class="p">)</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="c1">// return error</span>
<span class="p">}</span>
</pre></div>
</div>
<p>is replaced by</p>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">PySlice_Unpack</span><span class="p">(</span><span class="n">slice</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">start</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">stop</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">step</span><span class="p">)</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="c1">// return error</span>
<span class="p">}</span>
<span class="n">slicelength</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">PySlice_AdjustIndices</span><span class="p">(</span><span class="n">length</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">start</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">stop</span><span class="p">,</span><span class="w"> </span><span class="n">step</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">3.2 sürümünde değişti: </span>The parameter type for the <em>slice</em> parameter was <code class="docutils literal notranslate"><span class="pre">PySliceObject*</span></code>
before.</p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">3.6.1 sürümünde değişti: </span>If <code class="docutils literal notranslate"><span class="pre">Py_LIMITED_API</span></code> is not set or set to the value between <code class="docutils literal notranslate"><span class="pre">0x03050400</span></code>
and <code class="docutils literal notranslate"><span class="pre">0x03060000</span></code> (not including) or <code class="docutils literal notranslate"><span class="pre">0x03060100</span></code> or higher
<code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_GetIndicesEx()</span></code> is implemented as a macro using
<code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_Unpack()</span></code> and <code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_AdjustIndices()</span></code>.
Arguments <em>start</em>, <em>stop</em> and <em>step</em> are evaluated more than once.</p>
</div>
<div class="deprecated">
<p><span class="versionmodified deprecated">3.6.1 sürümünden beri kullanım dışı: </span>If <code class="docutils literal notranslate"><span class="pre">Py_LIMITED_API</span></code> is set to the value less than <code class="docutils literal notranslate"><span class="pre">0x03050400</span></code> or
between <code class="docutils literal notranslate"><span class="pre">0x03060000</span></code> and <code class="docutils literal notranslate"><span class="pre">0x03060100</span></code> (not including)
<code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_GetIndicesEx()</span></code> is a deprecated function.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PySlice_Unpack">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PySlice_Unpack</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">slice</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">start</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">stop</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">step</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_Unpack" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a> since version 3.7.</em><p>Extract the start, stop and step data members from a slice object as
C integers. Silently reduce values larger than <code class="docutils literal notranslate"><span class="pre">PY_SSIZE_T_MAX</span></code> to
<code class="docutils literal notranslate"><span class="pre">PY_SSIZE_T_MAX</span></code>, silently boost the start and stop values less than
<code class="docutils literal notranslate"><span class="pre">PY_SSIZE_T_MIN</span></code> to <code class="docutils literal notranslate"><span class="pre">PY_SSIZE_T_MIN</span></code>, and silently boost the step
values less than <code class="docutils literal notranslate"><span class="pre">-PY_SSIZE_T_MAX</span></code> to <code class="docutils literal notranslate"><span class="pre">-PY_SSIZE_T_MAX</span></code>.</p>
<p>Return <code class="docutils literal notranslate"><span class="pre">-1</span></code> on error, <code class="docutils literal notranslate"><span class="pre">0</span></code> on success.</p>
<div class="versionadded">
<p><span class="versionmodified added">3.6.1 sürümünde geldi.</span></p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PySlice_AdjustIndices">
<a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PySlice_AdjustIndices</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="n"><span class="pre">length</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">start</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">stop</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="n"><span class="pre">step</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_AdjustIndices" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a> since version 3.7.</em><p>Adjust start/end slice indices assuming a sequence of the specified length.
Out of bounds indices are clipped in a manner consistent with the handling
of normal slices.</p>
<p>Return the length of the slice. Always successful. Doesn’t call Python
code.</p>
<div class="versionadded">
<p><span class="versionmodified added">3.6.1 sürümünde geldi.</span></p>
</div>
</dd></dl>
<section id="ellipsis-object">
<h2>Ellipsis Object<a class="headerlink" href="#ellipsis-object" title="Permalink to this heading">¶</a></h2>
<dl class="c var">
<dt class="sig sig-object c" id="c.Py_Ellipsis">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">Py_Ellipsis</span></span></span><a class="headerlink" href="#c.Py_Ellipsis" title="Bu tanım için kalıcı bağlantı">¶</a><br /></dt>
<dd><p>The Python <code class="docutils literal notranslate"><span class="pre">Ellipsis</span></code> object. This object has no methods. It needs to be
treated just like any other object with respect to reference counts. Like
<a class="reference internal" href="none.html#c.Py_None" title="Py_None"><code class="xref c c-data docutils literal notranslate"><span class="pre">Py_None</span></code></a> it is a singleton object.</p>
</dd></dl>
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