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/usr/share/doc/python3-docs/html/c-api/code.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Code Objects — Python 3.6.7 documentation</title> <link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <script type="text/javascript" src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 3.6.7 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="next" title="File Objects" href="file.html" /> <link rel="prev" title="Cell Objects" href="cell.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <link rel="canonical" href="https://docs.python.org/3/c-api/code.html" /> <script type="text/javascript" src="../_static/copybutton.js"></script> </head><body> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="file.html" title="File Objects" accesskey="N">next</a> |</li> <li class="right" > <a href="cell.html" title="Cell Objects" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">3.6.7 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >Python/C API Reference Manual</a> »</li> <li class="nav-item nav-item-2"><a href="concrete.html" accesskey="U">Concrete Objects Layer</a> »</li> <li class="right"> <div class="inline-search" style="display: none" role="search"> <form class="inline-search" action="../search.html" method="get"> <input placeholder="Quick search" type="text" name="q" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('.inline-search').show(0);</script> | </li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <span class="target" id="codeobjects"></span><div class="section" id="code-objects"> <span id="index-0"></span><h1>Code Objects<a class="headerlink" href="#code-objects" title="Permalink to this headline">¶</a></h1> <p>Code objects are a low-level detail of the CPython implementation. Each one represents a chunk of executable code that hasn’t yet been bound into a function.</p> <dl class="type"> <dt id="c.PyCodeObject"> <code class="descname">PyCodeObject</code><a class="headerlink" href="#c.PyCodeObject" title="Permalink to this definition">¶</a></dt> <dd><p>The C structure of the objects used to describe code objects. The fields of this type are subject to change at any time.</p> </dd></dl> <dl class="var"> <dt id="c.PyCode_Type"> <a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject">PyTypeObject</a> <code class="descname">PyCode_Type</code><a class="headerlink" href="#c.PyCode_Type" title="Permalink to this definition">¶</a></dt> <dd><p>This is an 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> representing the Python <a class="reference internal" href="../library/code.html#module-code" title="code: Facilities to implement read-eval-print loops."><code class="xref py py-class docutils literal notranslate"><span class="pre">code</span></code></a> type.</p> </dd></dl> <dl class="function"> <dt id="c.PyCode_Check"> int <code class="descname">PyCode_Check</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *co</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyCode_Check" title="Permalink to this definition">¶</a></dt> <dd><p>Return true if <em>co</em> is a <a class="reference internal" href="../library/code.html#module-code" title="code: Facilities to implement read-eval-print loops."><code class="xref py py-class docutils literal notranslate"><span class="pre">code</span></code></a> object.</p> </dd></dl> <dl class="function"> <dt id="c.PyCode_GetNumFree"> int <code class="descname">PyCode_GetNumFree</code><span class="sig-paren">(</span><a class="reference internal" href="#c.PyCodeObject" title="PyCodeObject">PyCodeObject</a><em> *co</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyCode_GetNumFree" title="Permalink to this definition">¶</a></dt> <dd><p>Return the number of free variables in <em>co</em>.</p> </dd></dl> <dl class="function"> <dt id="c.PyCode_New"> <a class="reference internal" href="#c.PyCodeObject" title="PyCodeObject">PyCodeObject</a>* <code class="descname">PyCode_New</code><span class="sig-paren">(</span>int<em> argcount</em>, int<em> kwonlyargcount</em>, int<em> nlocals</em>, int<em> stacksize</em>, int<em> flags</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *code</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *consts</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *names</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *varnames</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *freevars</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *cellvars</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *filename</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *name</em>, int<em> firstlineno</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *lnotab</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyCode_New" title="Permalink to this definition">¶</a></dt> <dd><p>Return a new code object. If you need a dummy code object to create a frame, use <a class="reference internal" href="#c.PyCode_NewEmpty" title="PyCode_NewEmpty"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyCode_NewEmpty()</span></code></a> instead. Calling <a class="reference internal" href="#c.PyCode_New" title="PyCode_New"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyCode_New()</span></code></a> directly can bind you to a precise Python version since the definition of the bytecode changes often.</p> </dd></dl> <dl class="function"> <dt id="c.PyCode_NewEmpty"> <a class="reference internal" href="#c.PyCodeObject" title="PyCodeObject">PyCodeObject</a>* <code class="descname">PyCode_NewEmpty</code><span class="sig-paren">(</span>const char<em> *filename</em>, const char<em> *funcname</em>, int<em> firstlineno</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyCode_NewEmpty" title="Permalink to this definition">¶</a></dt> <dd><p>Return a new empty code object with the specified filename, function name, and first line number. It is illegal to <a class="reference internal" href="../library/functions.html#exec" title="exec"><code class="xref py py-func docutils literal notranslate"><span class="pre">exec()</span></code></a> or <a class="reference internal" href="../library/functions.html#eval" title="eval"><code class="xref py py-func docutils literal notranslate"><span class="pre">eval()</span></code></a> the resulting code object.</p> </dd></dl> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h4>Previous topic</h4> <p class="topless"><a href="cell.html" title="previous chapter">Cell Objects</a></p> <h4>Next topic</h4> <p class="topless"><a href="file.html" title="next chapter">File Objects</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li> <a href="https://github.com/python/cpython/blob/3.6/Doc/c-api/code.rst" rel="nofollow">Show Source </a> </li> </ul> </div> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="file.html" title="File Objects" >next</a> |</li> <li class="right" > <a href="cell.html" title="Cell Objects" >previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">3.6.7 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >Python/C API Reference Manual</a> »</li> <li class="nav-item nav-item-2"><a href="concrete.html" >Concrete Objects Layer</a> »</li> <li class="right"> <div class="inline-search" style="display: none" role="search"> <form class="inline-search" action="../search.html" method="get"> <input placeholder="Quick search" type="text" name="q" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('.inline-search').show(0);</script> | </li> </ul> </div> <div class="footer"> © <a href="../copyright.html">Copyright</a> 2001-2023, Python Software Foundation. <br /> The Python Software Foundation is a non-profit corporation. <a href="https://www.python.org/psf/donations/">Please donate.</a> <br /> Last updated on Dec 18, 2023. <a href="../bugs.html">Found a bug</a>? <br /> Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.7.6. </div> </body> </html>
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