parthtamu/rag-code-assistant
0
1<!DOCTYPE html>2 3<html lang="en" data-content_root="../">4 <head>5 <meta charset="utf-8" />6 <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />7<meta property="og:title" content="Custom Python Interpreters" />8<meta property="og:type" content="website" />9<meta property="og:url" content="https://docs.python.org/3/library/custominterp.html" />10<meta property="og:site_name" content="Python documentation" />11<meta property="og:description" content="The modules described in this chapter allow writing interfaces similar to Python’s interactive interpreter. If you want a Python interpreter that supports some special feature in addition to the Py..." />12<meta property="og:image:width" content="1146" />13<meta property="og:image:height" content="600" />14<meta property="og:image" content="https://docs.python.org/3.15/_images/social_previews/summary_library_custominterp_62ed67e7.png" />15<meta property="og:image:alt" content="The modules described in this chapter allow writing interfaces similar to Python’s interactive interpreter. If you want a Python interpreter that supports some special feature in addition to the Py..." />16<meta name="description" content="The modules described in this chapter allow writing interfaces similar to Python’s interactive interpreter. If you want a Python interpreter that supports some special feature in addition to the Py..." />17<meta name="twitter:card" content="summary_large_image" />18<meta name="theme-color" content="#3776ab">19 20 <title>Custom Python Interpreters — Python 3.15.0a6 documentation</title><meta name="viewport" content="width=device-width, initial-scale=1.0">21 22 <link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=b86133f3" />23 <link rel="stylesheet" type="text/css" href="../_static/classic.css?v=234b1a7c" />24 <link rel="stylesheet" type="text/css" href="../_static/pydoctheme.css?v=89a2f22a" />25 <link rel="stylesheet" type="text/css" href="../_static/profiling-sampling-visualization.css?v=0c2600ae" />26 <link id="pygments_dark_css" media="(prefers-color-scheme: dark)" rel="stylesheet" type="text/css" href="../_static/pygments_dark.css?v=5349f25f" />27 28 <script src="../_static/documentation_options.js?v=6b7c9ff5"></script>29 <script src="../_static/doctools.js?v=9bcbadda"></script>30 <script src="../_static/sphinx_highlight.js?v=dc90522c"></script>31 <script src="../_static/profiling-sampling-visualization.js?v=9811ed04"></script>32 33 <script src="../_static/sidebar.js"></script>34 35 <link rel="search" type="application/opensearchdescription+xml"36 title="Search within Python 3.15.0a6 documentation"37 href="../_static/opensearch.xml"/>38 <link rel="author" title="About these documents" href="../about.html" />39 <link rel="index" title="Index" href="../genindex.html" />40 <link rel="search" title="Search" href="../search.html" />41 <link rel="copyright" title="Copyright" href="../copyright.html" />42 <link rel="next" title="code — Interpreter base classes" href="code.html" />43 <link rel="prev" title="site — Site-specific configuration hook" href="site.html" />44 45 46 <script defer file-types="bz2,epub,zip" data-domain="docs.python.org" src="https://analytics.python.org/js/script.file-downloads.outbound-links.js"></script>47 48 <link rel="canonical" href="https://docs.python.org/3/library/custominterp.html">49 50 51 52 53 <style>54 @media only screen {55 table.full-width-table {56 width: 100%;57 }58 }59 </style>60<link rel="stylesheet" href="../_static/pydoctheme_dark.css" media="(prefers-color-scheme: dark)" id="pydoctheme_dark_css">61 <link rel="shortcut icon" type="image/png" href="../_static/py.svg">62 <script type="text/javascript" src="../_static/copybutton.js"></script>63 <script type="text/javascript" src="../_static/menu.js"></script>64 <script type="text/javascript" src="../_static/search-focus.js"></script>65 <script type="text/javascript" src="../_static/themetoggle.js"></script> 66 <script type="text/javascript" src="../_static/rtd_switcher.js"></script>67 <meta name="readthedocs-addons-api-version" content="1">68 69 </head>70<body>71<div class="mobile-nav">72 <input type="checkbox" id="menuToggler" class="toggler__input" aria-controls="navigation"73 aria-pressed="false" aria-expanded="false" role="button" aria-label="Menu">74 <nav class="nav-content" role="navigation">75 <label for="menuToggler" class="toggler__label">76 <span></span>77 </label>78 <span class="nav-items-wrapper">79 <a href="https://www.python.org/" class="nav-logo">80 <img src="../_static/py.svg" alt="Python logo">81 </a>82 <span class="version_switcher_placeholder"></span>83 <form role="search" class="search" action="../search.html" method="get">84 <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" class="search-icon">85 <path fill-rule="nonzero" fill="currentColor" d="M15.5 14h-.79l-.28-.27a6.5 6.5 0 001.48-5.34c-.47-2.78-2.79-5-5.59-5.34a6.505 6.505 0 00-7.27 7.27c.34 2.8 2.56 5.12 5.34 5.59a6.5 6.5 0 005.34-1.48l.27.28v.79l4.25 4.25c.41.41 1.08.41 1.49 0 .41-.41.41-1.08 0-1.49L15.5 14zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"></path>86 </svg>87 <input placeholder="Quick search" aria-label="Quick search" type="search" name="q">88 <input type="submit" value="Go">89 </form>90 </span>91 </nav>92 <div class="menu-wrapper">93 <nav class="menu" role="navigation" aria-label="main navigation">94 <div class="language_switcher_placeholder"></div>95 96<label class="theme-selector-label">97 Theme98 <select class="theme-selector" oninput="activateTheme(this.value)">99 <option value="auto" selected>Auto</option>100 <option value="light">Light</option>101 <option value="dark">Dark</option>102 </select>103</label>104 <div>105 <h4>Previous topic</h4>106 <p class="topless"><a href="site.html"107 title="previous chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">site</span></code> — Site-specific configuration hook</a></p>108 </div>109 <div>110 <h4>Next topic</h4>111 <p class="topless"><a href="code.html"112 title="next chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">code</span></code> — Interpreter base classes</a></p>113 </div>114 <script>115 document.addEventListener('DOMContentLoaded', () => {116 const title = document.querySelector('meta[property="og:title"]').content;117 const elements = document.querySelectorAll('.improvepage');118 const pageurl = window.location.href.split('?')[0];119 elements.forEach(element => {120 const url = new URL(element.href.split('?')[0].replace("-nojs", ""));121 url.searchParams.set('pagetitle', title);122 url.searchParams.set('pageurl', pageurl);123 url.searchParams.set('pagesource', "library/custominterp.rst");124 element.href = url.toString();125 });126 });127 </script>128 <div role="note" aria-label="source link">129 <h3>This page</h3>130 <ul class="this-page-menu">131 <li><a href="../bugs.html">Report a bug</a></li>132 <li><a class="improvepage" href="../improve-page-nojs.html">Improve this page</a></li>133 <li>134 <a href="https://github.com/python/cpython/blob/main/Doc/library/custominterp.rst?plain=1"135 rel="nofollow">Show source136 </a>137 </li>138 139 </ul>140 </div>141 </nav>142 </div>143</div>144 145 146 <div class="related" role="navigation" aria-label="Related">147 <h3>Navigation</h3>148 <ul>149 <li class="right" style="margin-right: 10px">150 <a href="../genindex.html" title="General Index"151 accesskey="I">index</a></li>152 <li class="right" >153 <a href="../py-modindex.html" title="Python Module Index"154 >modules</a> |</li>155 <li class="right" >156 <a href="code.html" title="code — Interpreter base classes"157 accesskey="N">next</a> |</li>158 <li class="right" >159 <a href="site.html" title="site — Site-specific configuration hook"160 accesskey="P">previous</a> |</li>161 162 <li><img src="../_static/py.svg" alt="Python logo" style="vertical-align: middle; margin-top: -1px"></li>163 <li><a href="https://www.python.org/">Python</a> »</li>164 <li class="switchers">165 <div class="language_switcher_placeholder"></div>166 <div class="version_switcher_placeholder"></div>167 </li>168 <li>169 170 </li>171 <li id="cpython-language-and-version">172 <a href="../index.html">3.15.0a6 Documentation</a> »173 </li>174 175 <li class="nav-item nav-item-1"><a href="index.html" accesskey="U">The Python Standard Library</a> »</li>176 <li class="nav-item nav-item-this"><a href="">Custom Python Interpreters</a></li>177 <li class="right">178 179 180 <div class="inline-search" role="search">181 <form class="inline-search" action="../search.html" method="get">182 <input placeholder="Quick search" aria-label="Quick search" type="search" name="q" id="search-box">183 <input type="submit" value="Go">184 </form>185 </div>186 |187 </li>188 <li class="right">189<label class="theme-selector-label">190 Theme191 <select class="theme-selector" oninput="activateTheme(this.value)">192 <option value="auto" selected>Auto</option>193 <option value="light">Light</option>194 <option value="dark">Dark</option>195 </select>196</label> |</li>197 198 </ul>199 </div> 200 201 <div class="document">202 <div class="documentwrapper">203 <div class="bodywrapper">204 <div class="body" role="main">205 206 <section id="custom-python-interpreters">207<span id="custominterp"></span><h1>Custom Python Interpreters<a class="headerlink" href="#custom-python-interpreters" title="Link to this heading">¶</a></h1>208<p>The modules described in this chapter allow writing interfaces similar to209Python’s interactive interpreter. If you want a Python interpreter that210supports some special feature in addition to the Python language, you should211look at the <a class="reference internal" href="code.html#module-code" title="code: Facilities to implement read-eval-print loops."><code class="xref py py-mod docutils literal notranslate"><span class="pre">code</span></code></a> module. (The <a class="reference internal" href="codeop.html#module-codeop" title="codeop: Compile (possibly incomplete) Python code."><code class="xref py py-mod docutils literal notranslate"><span class="pre">codeop</span></code></a> module is lower-level, used212to support compiling a possibly incomplete chunk of Python code.)</p>213<p>The full list of modules described in this chapter is:</p>214<div class="toctree-wrapper compound">215<ul>216<li class="toctree-l1"><a class="reference internal" href="code.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">code</span></code> — Interpreter base classes</a><ul>217<li class="toctree-l2"><a class="reference internal" href="code.html#interactive-interpreter-objects">Interactive Interpreter Objects</a></li>218<li class="toctree-l2"><a class="reference internal" href="code.html#interactive-console-objects">Interactive Console Objects</a></li>219</ul>220</li>221<li class="toctree-l1"><a class="reference internal" href="codeop.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">codeop</span></code> — Compile Python code</a></li>222</ul>223</div>224</section>225 226 227 <div class="clearer"></div>228 </div>229 </div>230 </div>231 <div class="sphinxsidebar" role="navigation" aria-label="Main">232 <div class="sphinxsidebarwrapper">233 <div>234 <h4>Previous topic</h4>235 <p class="topless"><a href="site.html"236 title="previous chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">site</span></code> — Site-specific configuration hook</a></p>237 </div>238 <div>239 <h4>Next topic</h4>240 <p class="topless"><a href="code.html"241 title="next chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">code</span></code> — Interpreter base classes</a></p>242 </div>243 <script>244 document.addEventListener('DOMContentLoaded', () => {245 const title = document.querySelector('meta[property="og:title"]').content;246 const elements = document.querySelectorAll('.improvepage');247 const pageurl = window.location.href.split('?')[0];248 elements.forEach(element => {249 const url = new URL(element.href.split('?')[0].replace("-nojs", ""));250 url.searchParams.set('pagetitle', title);251 url.searchParams.set('pageurl', pageurl);252 url.searchParams.set('pagesource', "library/custominterp.rst");253 element.href = url.toString();254 });255 });256 </script>257 <div role="note" aria-label="source link">258 <h3>This page</h3>259 <ul class="this-page-menu">260 <li><a href="../bugs.html">Report a bug</a></li>261 <li><a class="improvepage" href="../improve-page-nojs.html">Improve this page</a></li>262 <li>263 <a href="https://github.com/python/cpython/blob/main/Doc/library/custominterp.rst?plain=1"264 rel="nofollow">Show source265 </a>266 </li>267 268 </ul>269 </div>270 </div>271<div id="sidebarbutton" title="Collapse sidebar">272<span>«</span>273</div>274 275 </div>276 <div class="clearer"></div>277 </div> 278 <div class="related" role="navigation" aria-label="Related">279 <h3>Navigation</h3>280 <ul>281 <li class="right" style="margin-right: 10px">282 <a href="../genindex.html" title="General Index"283 >index</a></li>284 <li class="right" >285 <a href="../py-modindex.html" title="Python Module Index"286 >modules</a> |</li>287 <li class="right" >288 <a href="code.html" title="code — Interpreter base classes"289 >next</a> |</li>290 <li class="right" >291 <a href="site.html" title="site — Site-specific configuration hook"292 >previous</a> |</li>293 294 <li><img src="../_static/py.svg" alt="Python logo" style="vertical-align: middle; margin-top: -1px"></li>295 <li><a href="https://www.python.org/">Python</a> »</li>296 <li class="switchers">297 <div class="language_switcher_placeholder"></div>298 <div class="version_switcher_placeholder"></div>299 </li>300 <li>301 302 </li>303 <li id="cpython-language-and-version">304 <a href="../index.html">3.15.0a6 Documentation</a> »305 </li>306 307 <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li>308 <li class="nav-item nav-item-this"><a href="">Custom Python Interpreters</a></li>309 <li class="right">310 311 312 <div class="inline-search" role="search">313 <form class="inline-search" action="../search.html" method="get">314 <input placeholder="Quick search" aria-label="Quick search" type="search" name="q" id="search-box">315 <input type="submit" value="Go">316 </form>317 </div>318 |319 </li>320 <li class="right">321<label class="theme-selector-label">322 Theme323 <select class="theme-selector" oninput="activateTheme(this.value)">324 <option value="auto" selected>Auto</option>325 <option value="light">Light</option>326 <option value="dark">Dark</option>327 </select>328</label> |</li>329 330 </ul>331 </div> 332 <div class="footer">333 © <a href="../copyright.html">Copyright</a> 2001 Python Software Foundation.334 <br>335 This page is licensed under the Python Software Foundation License Version 2.336 <br>337 Examples, recipes, and other code in the documentation are additionally licensed under the Zero Clause BSD License.338 <br>339 340 See <a href="/license.html">History and License</a> for more information.<br>341 342 343 <br>344 345 The Python Software Foundation is a non-profit corporation.346<a href="https://www.python.org/psf/donations/">Please donate.</a>347<br>348 <br>349 Last updated on Mar 10, 2026 (08:58 UTC).350 351 <a href="/bugs.html">Found a bug</a>?352 353 <br>354 355 Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 8.2.3.356 </div>357 358 </body>359</html>