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<section id="list-objects">
<span id="listobjects"></span><h1>List Objects<a class="headerlink" href="#list-objects" title="Link to this heading">¶</a></h1>
<dl class="c type" id="index-0">
<dt class="sig sig-object c" id="c.PyListObject">
<span class="k"><span class="pre">type</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyListObject</span></span></span><a class="headerlink" href="#c.PyListObject" title="Link to this definition">¶</a><br /></dt>
<dd><p>This subtype of <a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyObject</span></code></a> represents a Python list object.</p>
</dd></dl>
<dl class="c var">
<dt class="sig sig-object c" id="c.PyList_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">PyList_Type</span></span></span><a class="headerlink" href="#c.PyList_Type" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><p>This instance of <a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyTypeObject</span></code></a> represents the Python list type.
This is the same object as <a class="reference internal" href="../library/stdtypes.html#list" title="list"><code class="xref py py-class docutils literal notranslate"><span class="pre">list</span></code></a> in the Python layer.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_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">PyList_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">p</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Check" title="Link to this definition">¶</a><br /></dt>
<dd><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Return true if <em>p</em> is a list object or an instance of a subtype of the list
type. This function always succeeds.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_CheckExact">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_CheckExact</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">p</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_CheckExact" title="Link to this definition">¶</a><br /></dt>
<dd><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Return true if <em>p</em> is a list object, but not an instance of a subtype of
the list type. This function always succeeds.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_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">PyList_New</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">len</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_New" title="Link to this definition">¶</a><br /></dt>
<dd><em class="refcount return_new_ref">مقدار بازگشتی: مرجع جدید.</em><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Return a new list of length <em>len</em> on success, or <code class="docutils literal notranslate"><span class="pre">NULL</span></code> on failure.</p>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>If <em>len</em> is greater than zero, the returned list object's items are
set to <code class="docutils literal notranslate"><span class="pre">NULL</span></code>. Thus you cannot use abstract API functions such as
<a class="reference internal" href="sequence.html#c.PySequence_SetItem" title="PySequence_SetItem"><code class="xref c c-func docutils literal notranslate"><span class="pre">PySequence_SetItem()</span></code></a> or expose the object to Python code before
setting all items to a real object with <a class="reference internal" href="#c.PyList_SetItem" title="PyList_SetItem"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_SetItem()</span></code></a> or
<a class="reference internal" href="#c.PyList_SET_ITEM" title="PyList_SET_ITEM"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_SET_ITEM()</span></code></a>. The following APIs are safe APIs before
the list is fully initialized: <code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_SetItem()</span></code> and <code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_SET_ITEM()</span></code>.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_Size">
<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">PyList_Size</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">list</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Size" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p id="index-1">Return the length of the list object in <em>list</em>; this is equivalent to
<code class="docutils literal notranslate"><span class="pre">len(list)</span></code> on a list object.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_GET_SIZE">
<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">PyList_GET_SIZE</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">list</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_GET_SIZE" title="Link to this definition">¶</a><br /></dt>
<dd><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Similar to <a class="reference internal" href="#c.PyList_Size" title="PyList_Size"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_Size()</span></code></a>, but without error checking.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_GetItemRef">
<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">PyList_GetItemRef</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">list</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">index</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_GetItemRef" title="Link to this definition">¶</a><br /></dt>
<dd><em class="refcount return_new_ref">مقدار بازگشتی: مرجع جدید.</em><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a> از نسخهی 3.13.</em><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Return the object at position <em>index</em> in the list pointed to by <em>list</em>. The
position must be non-negative; indexing from the end of the list is not
supported. If <em>index</em> is out of bounds (<code class="code docutils literal notranslate"><span class="pre"><0</span> <span class="pre">or</span> <span class="pre">>=len(list)</span></code>),
return <code class="docutils literal notranslate"><span class="pre">NULL</span></code> and set an <a class="reference internal" href="../library/exceptions.html#IndexError" title="IndexError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IndexError</span></code></a> exception.</p>
<div class="versionadded">
<p><span class="versionmodified added">Added in version 3.13.</span></p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_GetItem">
<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">PyList_GetItem</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">list</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">index</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_GetItem" title="Link to this definition">¶</a><br /></dt>
<dd><em class="refcount return_borrowed_ref">مقدار بازگشتی: مرجع قرضی.</em><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-compatible"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-compatible"><span class="std std-ref">Safe to call from multiple threads with external synchronization only</span></a>.</em><p>Like <a class="reference internal" href="#c.PyList_GetItemRef" title="PyList_GetItemRef"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_GetItemRef()</span></code></a>, but returns a
<a class="reference internal" href="../glossary.html#term-borrowed-reference"><span class="xref std std-term">borrowed reference</span></a> instead of a <a class="reference internal" href="../glossary.html#term-strong-reference"><span class="xref std std-term">strong reference</span></a>.</p>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>In the <a class="reference internal" href="../glossary.html#term-free-threaded-build"><span class="xref std std-term">free-threaded build</span></a>, the returned
<a class="reference internal" href="../glossary.html#term-borrowed-reference"><span class="xref std std-term">borrowed reference</span></a> may become invalid if another thread modifies
the list concurrently. Prefer <a class="reference internal" href="#c.PyList_GetItemRef" title="PyList_GetItemRef"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_GetItemRef()</span></code></a>, which returns
a <a class="reference internal" href="../glossary.html#term-strong-reference"><span class="xref std std-term">strong reference</span></a>.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_GET_ITEM">
<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">PyList_GET_ITEM</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">list</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">i</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_GET_ITEM" title="Link to this definition">¶</a><br /></dt>
<dd><em class="refcount return_borrowed_ref">مقدار بازگشتی: مرجع قرضی.</em><em class="threadsafety threadsafety-compatible"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-compatible"><span class="std std-ref">Safe to call from multiple threads with external synchronization only</span></a>.</em><p>Similar to <a class="reference internal" href="#c.PyList_GetItem" title="PyList_GetItem"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_GetItem()</span></code></a>, but without error checking.</p>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>In the <a class="reference internal" href="../glossary.html#term-free-threaded-build"><span class="xref std std-term">free-threaded build</span></a>, the returned
<a class="reference internal" href="../glossary.html#term-borrowed-reference"><span class="xref std std-term">borrowed reference</span></a> may become invalid if another thread modifies
the list concurrently. Prefer <a class="reference internal" href="#c.PyList_GetItemRef" title="PyList_GetItemRef"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_GetItemRef()</span></code></a>, which returns
a <a class="reference internal" href="../glossary.html#term-strong-reference"><span class="xref std std-term">strong reference</span></a>.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_SetItem">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_SetItem</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">list</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">index</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">item</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_SetItem" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Set the item at index <em>index</em> in list to <em>item</em>. Return <code class="docutils literal notranslate"><span class="pre">0</span></code> on success.
If <em>index</em> is out of bounds, return <code class="docutils literal notranslate"><span class="pre">-1</span></code> and set an <a class="reference internal" href="../library/exceptions.html#IndexError" title="IndexError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IndexError</span></code></a>
exception.</p>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>This function "steals" a reference to <em>item</em> and discards a reference to
an item already in the list at the affected position.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_SET_ITEM">
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_SET_ITEM</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">list</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">i</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">o</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_SET_ITEM" title="Link to this definition">¶</a><br /></dt>
<dd><em class="threadsafety threadsafety-compatible"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-compatible"><span class="std std-ref">Safe to call from multiple threads with external synchronization only</span></a>.</em><p>Macro form of <a class="reference internal" href="#c.PyList_SetItem" title="PyList_SetItem"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_SetItem()</span></code></a> without error checking. This is
normally only used to fill in new lists where there is no previous content.</p>
<p>Bounds checking is performed as an assertion if Python is built in
<a class="reference internal" href="../using/configure.html#debug-build"><span class="std std-ref">debug mode</span></a> or <a class="reference internal" href="../using/configure.html#cmdoption-with-assertions"><code class="xref std std-option docutils literal notranslate"><span class="pre">with</span> <span class="pre">assertions</span></code></a>.</p>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>This macro "steals" a reference to <em>item</em>, and, unlike
<a class="reference internal" href="#c.PyList_SetItem" title="PyList_SetItem"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_SetItem()</span></code></a>, does <em>not</em> discard a reference to any item that
is being replaced; any reference in <em>list</em> at position <em>i</em> will be
leaked.</p>
</div>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>In the <a class="reference internal" href="../glossary.html#term-free-threaded-build"><span class="xref std std-term">free-threaded build</span></a>, this macro has no internal
synchronization. It is normally only used to fill in new lists where no
other thread has a reference to the list. If the list may be shared,
use <a class="reference internal" href="#c.PyList_SetItem" title="PyList_SetItem"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_SetItem()</span></code></a> instead, which uses a <a class="reference internal" href="../glossary.html#term-per-object-lock"><span class="xref std std-term">per-object
lock</span></a>.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_Insert">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_Insert</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">list</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">index</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">item</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Insert" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-shared"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-shared"><span class="std std-ref">Safe for concurrent use on the same object</span></a>.</em><p>Insert the item <em>item</em> into list <em>list</em> in front of index <em>index</em>. Return
<code class="docutils literal notranslate"><span class="pre">0</span></code> if successful; return <code class="docutils literal notranslate"><span class="pre">-1</span></code> and set an exception if unsuccessful.
Analogous to <code class="docutils literal notranslate"><span class="pre">list.insert(index,</span> <span class="pre">item)</span></code>.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_Append">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_Append</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">list</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">item</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Append" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Append the object <em>item</em> at the end of list <em>list</em>. Return <code class="docutils literal notranslate"><span class="pre">0</span></code> if
successful; return <code class="docutils literal notranslate"><span class="pre">-1</span></code> and set an exception if unsuccessful. Analogous
to <code class="docutils literal notranslate"><span class="pre">list.append(item)</span></code>.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_GetSlice">
<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">PyList_GetSlice</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">list</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">low</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">high</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_GetSlice" title="Link to this definition">¶</a><br /></dt>
<dd><em class="refcount return_new_ref">مقدار بازگشتی: مرجع جدید.</em><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Return a list of the objects in <em>list</em> containing the objects <em>between</em> <em>low</em>
and <em>high</em>. Return <code class="docutils literal notranslate"><span class="pre">NULL</span></code> and set an exception if unsuccessful. Analogous
to <code class="docutils literal notranslate"><span class="pre">list[low:high]</span></code>. Indexing from the end of the list is not supported.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_SetSlice">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_SetSlice</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">list</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">low</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">high</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">itemlist</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_SetSlice" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-shared"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-shared"><span class="std std-ref">Safe for concurrent use on the same object</span></a>.</em><p>Set the slice of <em>list</em> between <em>low</em> and <em>high</em> to the contents of
<em>itemlist</em>. Analogous to <code class="docutils literal notranslate"><span class="pre">list[low:high]</span> <span class="pre">=</span> <span class="pre">itemlist</span></code>. The <em>itemlist</em> may
be <code class="docutils literal notranslate"><span class="pre">NULL</span></code>, indicating the assignment of an empty list (slice deletion).
Return <code class="docutils literal notranslate"><span class="pre">0</span></code> on success, <code class="docutils literal notranslate"><span class="pre">-1</span></code> on failure. Indexing from the end of the
list is not supported.</p>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>In the <a class="reference internal" href="../glossary.html#term-free-threaded-build"><span class="xref std std-term">free-threaded build</span></a>, when <em>itemlist</em> is a <a class="reference internal" href="../library/stdtypes.html#list" title="list"><code class="xref py py-class docutils literal notranslate"><span class="pre">list</span></code></a>,
both <em>list</em> and <em>itemlist</em> are locked for the duration of the operation.
For other iterables (or <code class="docutils literal notranslate"><span class="pre">NULL</span></code>), only <em>list</em> is locked.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_Extend">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_Extend</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">list</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">iterable</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Extend" title="Link to this definition">¶</a><br /></dt>
<dd><em class="threadsafety threadsafety-shared"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-shared"><span class="std std-ref">Safe for concurrent use on the same object</span></a>.</em><p>Extend <em>list</em> with the contents of <em>iterable</em>. This is the same as
<code class="docutils literal notranslate"><span class="pre">PyList_SetSlice(list,</span> <span class="pre">PY_SSIZE_T_MAX,</span> <span class="pre">PY_SSIZE_T_MAX,</span> <span class="pre">iterable)</span></code>
and analogous to <code class="docutils literal notranslate"><span class="pre">list.extend(iterable)</span></code> or <code class="docutils literal notranslate"><span class="pre">list</span> <span class="pre">+=</span> <span class="pre">iterable</span></code>.</p>
<p>Raise an exception and return <code class="docutils literal notranslate"><span class="pre">-1</span></code> if <em>list</em> is not a <a class="reference internal" href="../library/stdtypes.html#list" title="list"><code class="xref py py-class docutils literal notranslate"><span class="pre">list</span></code></a>
object. Return 0 on success.</p>
<div class="versionadded">
<p><span class="versionmodified added">Added in version 3.13.</span></p>
</div>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>In the <a class="reference internal" href="../glossary.html#term-free-threaded-build"><span class="xref std std-term">free-threaded build</span></a>, when <em>iterable</em> is a <a class="reference internal" href="../library/stdtypes.html#list" title="list"><code class="xref py py-class docutils literal notranslate"><span class="pre">list</span></code></a>,
<a class="reference internal" href="../library/stdtypes.html#set" title="set"><code class="xref py py-class docutils literal notranslate"><span class="pre">set</span></code></a>, <a class="reference internal" href="../library/stdtypes.html#dict" title="dict"><code class="xref py py-class docutils literal notranslate"><span class="pre">dict</span></code></a>, or dict view, both <em>list</em> and <em>iterable</em>
(or its underlying dict) are locked for the duration of the operation.
For other iterables, only <em>list</em> is locked; <em>iterable</em> may be
concurrently modified by another thread.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_Clear">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_Clear</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">list</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Clear" title="Link to this definition">¶</a><br /></dt>
<dd><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p>Remove all items from <em>list</em>. This is the same as
<code class="docutils literal notranslate"><span class="pre">PyList_SetSlice(list,</span> <span class="pre">0,</span> <span class="pre">PY_SSIZE_T_MAX,</span> <span class="pre">NULL)</span></code> and analogous to
<code class="docutils literal notranslate"><span class="pre">list.clear()</span></code> or <code class="docutils literal notranslate"><span class="pre">del</span> <span class="pre">list[:]</span></code>.</p>
<p>Raise an exception and return <code class="docutils literal notranslate"><span class="pre">-1</span></code> if <em>list</em> is not a <a class="reference internal" href="../library/stdtypes.html#list" title="list"><code class="xref py py-class docutils literal notranslate"><span class="pre">list</span></code></a>
object. Return 0 on success.</p>
<div class="versionadded">
<p><span class="versionmodified added">Added in version 3.13.</span></p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_Sort">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_Sort</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">list</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Sort" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-shared"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-shared"><span class="std std-ref">Safe for concurrent use on the same object</span></a>.</em><p>Sort the items of <em>list</em> in place. Return <code class="docutils literal notranslate"><span class="pre">0</span></code> on success, <code class="docutils literal notranslate"><span class="pre">-1</span></code> on
failure. This is equivalent to <code class="docutils literal notranslate"><span class="pre">list.sort()</span></code>.</p>
<div class="admonition note">
<p class="admonition-title">توجه</p>
<p>In the <a class="reference internal" href="../glossary.html#term-free-threaded-build"><span class="xref std std-term">free-threaded build</span></a>, element comparison via
<a class="reference internal" href="../reference/datamodel.html#object.__lt__" title="object.__lt__"><code class="xref py py-meth docutils literal notranslate"><span class="pre">__lt__()</span></code></a> can execute arbitrary Python code, during which
the <a class="reference internal" href="../glossary.html#term-per-object-lock"><span class="xref std std-term">per-object lock</span></a> may be temporarily released. For built-in
types (<a class="reference internal" href="../library/stdtypes.html#str" title="str"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a>, <a class="reference internal" href="../library/functions.html#int" title="int"><code class="xref py py-class docutils literal notranslate"><span class="pre">int</span></code></a>, <a class="reference internal" href="../library/functions.html#float" title="float"><code class="xref py py-class docutils literal notranslate"><span class="pre">float</span></code></a>), the lock is not
released during comparison.</p>
</div>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_Reverse">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyList_Reverse</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">list</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_Reverse" title="Link to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-shared"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-shared"><span class="std std-ref">Safe for concurrent use on the same object</span></a>.</em><p>Reverse the items of <em>list</em> in place. Return <code class="docutils literal notranslate"><span class="pre">0</span></code> on success, <code class="docutils literal notranslate"><span class="pre">-1</span></code> on
failure. This is the equivalent of <code class="docutils literal notranslate"><span class="pre">list.reverse()</span></code>.</p>
</dd></dl>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyList_AsTuple">
<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">PyList_AsTuple</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">list</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyList_AsTuple" title="Link to this definition">¶</a><br /></dt>
<dd><em class="refcount return_new_ref">مقدار بازگشتی: مرجع جدید.</em><em class="stableabi"> قسمتی از <a class="reference internal" href="stable.html#stable"><span class="std std-ref">ABI پایدار</span></a>.</em><em class="threadsafety threadsafety-atomic"> Thread safety: <a class="reference internal" href="../library/threadsafety.html#threadsafety-level-atomic"><span class="std std-ref">Atomic</span></a>.</em><p id="index-2">Return a new tuple object containing the contents of <em>list</em>; equivalent to
<code class="docutils literal notranslate"><span class="pre">tuple(list)</span></code>.</p>
</dd></dl>
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