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pocketpy
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features
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debugging
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  181.                                     <a class="block py-1 inline-flex items-center text-sm whitespace-nowrap transition-colors duration-200 ease-linear md:text-header-text font-header-text hover:text-header-text-hover" href="https://pocketpy.dev/static/web/" target="_blank">
    182. 

  182.                                         <svg xmlns="http://www.w3.org/2000/svg" class="mb-px mr-1" width="18" height="18" viewBox="0 0 24 24" role="presentation">
    183. 

  183.                                             <g fill="currentColor">
    184. 

  184.                                                 <path d="M9.5 15.584V8.416a.5.5 0 0 1 .77-.42l5.576 3.583a.5.5 0 0 1 0 .842l-5.576 3.584a.5.5 0 0 1-.77-.42Z"/><path d="M1 12C1 5.925 5.925 1 12 1s11 4.925 11 11-4.925 11-11 11S1 18.075 1 12Zm11-9.5A9.5 9.5 0 0 0 2.5 12a9.5 9.5 0 0 0 9.5 9.5 9.5 9.5 0 0 0 9.5-9.5A9.5 9.5 0 0 0 12 2.5Z"/>
    185. 

  185.                                             </g>
    186. 

  186.                                         </svg>
    187. 

  187.                                         <span>Live Demo</span>
    188. 

  188.                                     </a>
    189. 

  189.                                 </li>
    190. 

  190.                                 <li class="mr-6">
    191. 

  191.                                     <a class="block py-1 inline-flex items-center text-sm whitespace-nowrap transition-colors duration-200 ease-linear md:text-header-text font-header-text hover:text-header-text-hover" href="https://pocketpy.github.io/examples/" target="_blank">
    192. 

  192.                                         <svg xmlns="http://www.w3.org/2000/svg" class="mb-px mr-1" width="18" height="18" viewBox="0 0 24 24" role="presentation">
    193. 

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    194. 

  194.                                                 <path d="M15.22 4.97a.75.75 0 0 1 1.06 0l6.5 6.5a.75.75 0 0 1 0 1.06l-6.5 6.5a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L21.19 12l-5.97-5.97a.75.75 0 0 1 0-1.06Zm-6.44 0a.75.75 0 0 1 0 1.06L2.81 12l5.97 5.97a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215l-6.5-6.5a.75.75 0 0 1 0-1.06l6.5-6.5a.75.75 0 0 1 1.06 0Z"/>
    195. 

  195.                                             </g>
    196. 

  196.                                         </svg>
    197. 

  197.                                         <span>Live Examples</span>
    198. 

  198.                                     </a>
    199. 

  199.                                 </li>
    200. 

  200.                                 <li class="mr-6">
    201. 

  201.                                     <a class="block py-1 inline-flex items-center text-sm whitespace-nowrap transition-colors duration-200 ease-linear md:text-header-text font-header-text hover:text-header-text-hover" href="https://github.com/blueloveth/pocketpy" target="_blank">
    202. 

  202.                                         <svg xmlns="http://www.w3.org/2000/svg" class="mb-px mr-1" width="18" height="18" viewBox="0 0 24 24" role="presentation">
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    205. 

  205.                                             </g>
    206. 

  206.                                         </svg>
    207. 

  207.                                         <span>Github</span>
    208. 

  208.                                     </a>
    209. 

  209.                                 </li>
    210. 

  210.                                 <li class="mr-6">
    211. 

  211.                                     <a class="block py-1 inline-flex items-center text-sm whitespace-nowrap transition-colors duration-200 ease-linear md:text-header-text font-header-text hover:text-header-text-hover" href="https://discord.gg/WWaq72GzXv" target="_blank">
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    215. 

  215.                                             </g>
    216. 

  216.                                         </svg>
    217. 

  217.                                         <span>Discord</span>
    218. 

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    219. 

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    220. 

  220.         
    221. 

  221.                             </ul>
    222. 

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  225.                     <a class="flex items-center justify-center flex-nowrap h-16 text-gray-350 dark:text-dark-400 hover:text-gray-600 dark:hover:text-dark-300 transition-colors duration-150 ease-in docs-powered-by" target="_blank" href="https://retype.com/" rel="noopener">
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    237. 

  237.         <main class="relative pb-12 lg:pt-2">
    238. 

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    241. 

  241.                 <!-- Page content  -->
    242. 

  242. <doc-anchor-target id="debugging" class="break-words">
    243. 

  243.     <h1>
    244. 

  244.         <doc-anchor-trigger class="header-anchor-trigger" to="#debugging">#</doc-anchor-trigger>
    245. 

  245.         <span>Debugging</span>
    246. 

  246.     </h1>
    247. 

  247. </doc-anchor-target>
    248. 

  248. <doc-anchor-target id="install-vscode-extension">
    249. 

  249.     <h2>
    250. 

  250.         <doc-anchor-trigger class="header-anchor-trigger" to="#install-vscode-extension">#</doc-anchor-trigger>
    251. 

  251.         <span>Install VSCode Extension</span>
    252. 

  252.     </h2>
    253. 

  253. </doc-anchor-target>
    254. 

  254. <p>To debug a pocketpy program, you need to install our VSCode extension first:</p>
    255. 

  255. <p><a href="https://marketplace.visualstudio.com/items?itemName=pocketpy.pocketpy">https://marketplace.visualstudio.com/items?itemName=pocketpy.pocketpy</a></p>
    256. 

  256. <div class="flex mb-6">
    257. 

  257.     <div class="shrink-0 w-1.5 rounded-tl-lg rounded-bl-lg bg-callout-primary"></div>
    258. 

  258.     <div class="flex w-full py-4 border border-l-0 rounded-tr-lg rounded-br-lg doc-callout bg-callout-base-bg border-callout-base-border" role="alert">
    259. 

  259.         <div class="flex items-center ml-4 h-7">
    260. 

  260.             <svg xmlns="http://www.w3.org/2000/svg" class="mb-px text-callout-primary" width="22" height="22" viewBox="0 0 24 24" role="presentation">
    261. 

  261.                 <g fill="currentColor"><g>
    262. 

  262.                     <path d="M12 1C5.93 1 1 5.93 1 12s4.93 11 11 11 11-4.93 11-11S18.07 1 12 1zm0 20c-4.96 0-9-4.04-9-9s4.04-9 9-9 9 4.04 9 9-4.04 9-9 9z"></path>
    263. 

  263.                     <path d="M12 11c-.55 0-1 .45-1 1v4c0 .55.45 1 1 1s1-.45 1-1v-4c0-.55-.45-1-1-1zM12.01 7c-.56 0-1 .45-1 1s.45 1 1 1 1-.45 1-1-.45-1-1-1z"></path>
    264. 

  264.                     <path fill="none" d="M0 0h24v24H0z"></path>
    265. 

  265.                 </g></g>
    266. 

  266.             </svg>
    267. 

  267.         </div>
    268. 

  268.         <div class="pr-5 ml-3 w-full">
    269. 

  269. <p>The VSCode extension requires pocketpy version &gt;= <code translate="no" v-pre>2.1.1</code></p>
    270. 

  270.         </div>
    271. 

  271.     </div>
    272. 

  272. </div>
    273. 

  273. <doc-anchor-target id="create-a-launchjson-file">
    274. 

  274.     <h2>
    275. 

  275.         <doc-anchor-trigger class="header-anchor-trigger" to="#create-a-launchjson-file">#</doc-anchor-trigger>
    276. 

  276.         <span>Create a <code translate="no" v-pre>launch.json</code> file</span>
    277. 

  277.     </h2>
    278. 

  278. </doc-anchor-target>
    279. 

  279. <p>Navigate to the Debug view in VSCode, and click on &quot;create a launch.json file&quot; link.
    280. 

  280. In the dropdown menu, select &quot;pocketpy&quot;.</p>
    281. 

  281. <p><figure class="content-center">
    282. 

  282.     <img src="../../static/debugger/launch_json.png" alt="launch_json" class="rounded-image-rounded border-image-border border-image-border-width" />
    283. 

  283.     <figcaption class="caption">launch_json</figcaption>
    284. 

  284. </figure>
    285. 

  285. </p>
    286. 

  286. <p>Then a default <code translate="no" v-pre>launch.json</code> file will be created in the <code translate="no" v-pre>.vscode</code> folder
    287. 

  287. with a sample pocketpy debug configuration.</p>
    288. 

  288. <doc-anchor-target id="how-does-it-work">
    289. 

  289.     <h2>
    290. 

  290.         <doc-anchor-trigger class="header-anchor-trigger" to="#how-does-it-work">#</doc-anchor-trigger>
    291. 

  291.         <span>How does it work?</span>
    292. 

  292.     </h2>
    293. 

  293. </doc-anchor-target>
    294. 

  294. <p>pocketpy provides a C-API <code translate="no" v-pre>py_debugger_waitforattach</code>,
    295. 

  295. which starts a debug server and waits for the VSCode extension to attach.
    296. 

  296. When the debugger is attached, the program will continue to run.</p>
    297. 

  297. <ul>
    298. 

  298. <li>If you are using pocketpy&#x27;s standalone executable <code translate="no" v-pre>main.exe</code>, you can pass <code translate="no" v-pre>--debug</code> flag to it. This will automatically call <code translate="no" v-pre>py_debugger_waitforattach(&quot;127.0.0.1&quot;, 6110)</code> before running your program.</li>
    299. 

  299. <li>If you are embedding pocketpy as a library, you need to call <code translate="no" v-pre>py_debugger_waitforattach</code> manually in your C/C++ code.</li>
    300. 

  300. </ul>
    301. 

  301. <doc-anchor-target id="configuration">
    302. 

  302.     <h2>
    303. 

  303.         <doc-anchor-trigger class="header-anchor-trigger" to="#configuration">#</doc-anchor-trigger>
    304. 

  304.         <span>Configuration</span>
    305. 

  305.     </h2>
    306. 

  306. </doc-anchor-target>
    307. 

  307. <ul>
    308. 

  308. <li><code translate="no" v-pre>type</code>: must be <code translate="no" v-pre>pocketpy</code></li>
    309. 

  309. <li><code translate="no" v-pre>request</code>: can be <code translate="no" v-pre>attach</code> or <code translate="no" v-pre>launch</code></li>
    310. 

  310. <li><code translate="no" v-pre>name</code>: the name of this configuration</li>
    311. 

  311. <li><code translate="no" v-pre>port</code>: the port number of the debug server, must match the one in <code translate="no" v-pre>py_debugger_waitforattach</code></li>
    312. 

  312. <li><code translate="no" v-pre>host</code>: the host of the debug server, must match the one in <code translate="no" v-pre>py_debugger_waitforattach</code></li>
    313. 

  313. <li><code translate="no" v-pre>sourceFolder</code>: the root folder of your python source code, default to <code translate="no" v-pre>${workspaceFolder}</code>. However,
    314. 

  314. sometimes you may run your program from a subfolder, in this case you need to set <code translate="no" v-pre>sourceFolder</code> to the correct path. If this is not set correctly, breakpoints will not be hit.</li>
    315. 

  315. <li><code translate="no" v-pre>program</code>: (for launch mode only) the path to the executable file which calls <code translate="no" v-pre>py_debugger_waitforattach</code>, e.g. the pocketpy standalone executable <code translate="no" v-pre>main.exe</code>.</li>
    316. 

  316. <li><code translate="no" v-pre>args</code>: (for launch mode only) the arguments to pass to the executable file, e.g. <code translate="no" v-pre>--debug</code> and the script path if you are using <code translate="no" v-pre>main.exe</code>.</li>
    317. 

  317. <li><code translate="no" v-pre>cwd</code>: (for launch mode only) the working directory to launch the executable file, default to <code translate="no" v-pre>${workspaceFolder}</code>.</li>
    318. 

  318. </ul>
    319. 

  319. <doc-anchor-target id="for-attach-mode">
    320. 

  320.     <h3>
    321. 

  321.         <doc-anchor-trigger class="header-anchor-trigger" to="#for-attach-mode">#</doc-anchor-trigger>
    322. 

  322.         <span>For attach mode</span>
    323. 

  323.     </h3>
    324. 

  324. </doc-anchor-target>
    325. 

  325. <p>In this mode, you need to start your pocketpy program manually which must call <code translate="no" v-pre>py_debugger_waitforattach</code> first.
    326. 

  326. After the program starts, you can let VSCode attach to the debug server.</p>
    327. 

  327. <div id="for-attach-mode-code-1" class="codeblock-wrapper"><doc-codeblock>
    328. 

  328. <pre translate="no" class="language-json"><code v-pre class="language-json">{
    329. 

  329.     &quot;type&quot;: &quot;pocketpy&quot;,
    330. 

  330.     &quot;request&quot;: &quot;attach&quot;,
    331. 

  331.     &quot;name&quot;: &quot;Attach to pocketpy program&quot;,
    332. 

  332.     &quot;port&quot;: 6110,
    333. 

  333.     &quot;host&quot;: &quot;localhost&quot;,
    334. 

  334.     &quot;sourceFolder&quot;: &quot;${workspaceFolder}&quot;
    335. 

  335. }</code></pre>
    336. 

  336. </doc-codeblock></div>
    337. 

  337. <doc-anchor-target id="for-launch-mode">
    338. 

  338.     <h3>
    339. 

  339.         <doc-anchor-trigger class="header-anchor-trigger" to="#for-launch-mode">#</doc-anchor-trigger>
    340. 

  340.         <span>For launch mode</span>
    341. 

  341.     </h3>
    342. 

  342. </doc-anchor-target>
    343. 

  343. <p>In this mode, VSCode will start your program with the specified <code translate="no" v-pre>program</code>, <code translate="no" v-pre>args</code> and <code translate="no" v-pre>cwd</code>.
    344. 

  344. After the program starts, VSCode attempts to attach to the debug server automatically.</p>
    345. 

  345. <div id="for-launch-mode-code-1" class="codeblock-wrapper"><doc-codeblock>
    346. 

  346. <pre translate="no" class="language-json"><code v-pre class="language-json">{
    347. 

  347.     &quot;type&quot;: &quot;pocketpy&quot;,
    348. 

  348.     &quot;request&quot;: &quot;launch&quot;,
    349. 

  349.     &quot;name&quot;: &quot;Launch pocketpy program&quot;,
    350. 

  350.     &quot;port&quot;: 6110,
    351. 

  351.     &quot;host&quot;: &quot;localhost&quot;,
    352. 

  352.     &quot;sourceFolder&quot;: &quot;${workspaceFolder}&quot;,
    353. 

  353.     &quot;program&quot;: &quot;${workspaceFolder}/pocketpy/main.exe&quot;,
    354. 

  354.     &quot;args&quot;: [
    355. 

  355.         &quot;--debug&quot;
    356. 

  356.     ],
    357. 

  357.     &quot;cwd&quot;: &quot;${workspaceFolder}&quot;
    358. 

  358. }</code></pre>
    359. 

  359. </doc-codeblock></div>
    360. 

  360. <doc-anchor-target id="showcase">
    361. 

  361.     <h2>
    362. 

  362.         <doc-anchor-trigger class="header-anchor-trigger" to="#showcase">#</doc-anchor-trigger>
    363. 

  363.         <span>Showcase</span>
    364. 

  364.     </h2>
    365. 

  365. </doc-anchor-target>
    366. 

  366. <p><figure class="content-center">
    367. 

  367.     <img src="../../static/debugger/debugger_demo.png" alt="debugger_demo" class="rounded-image-rounded border-image-border border-image-border-width" />
    368. 

  368.     <figcaption class="caption">debugger_demo</figcaption>
    369. 

  369. </figure>
    370. 

  370. </p>
    371. 

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    392. 

  392.                                 <span class="block text-xs font-normal text-right text-base-text-muted">Next</span>
    393. 

  393.                                 <span class="block mt-1">Profiling</span>
    394. 

  394.                             </span>
    395. 

  395.                             <svg xmlns="http://www.w3.org/2000/svg" class="ml-3" width="24" height="24" viewBox="0 0 24 24" fill="currentColor" overflow="visible"><path d="M19.92 12.38a1 1 0 00-.22-1.09l-7-7a.996.996 0 10-1.41 1.41l5.3 5.3H5c-.55 0-1 .45-1 1s.45 1 1 1h11.59l-5.29 5.29a.996.996 0 000 1.41c.19.2.44.3.7.3s.51-.1.71-.29l7-7c.09-.09.16-.21.21-.33z" /><path fill="none" d="M0 0h24v24H0z" /></svg>
    396. 

  396.                         </a>
    397. 

  397.                     </div>
    398. 

  398.                 </nav>
    399. 

  399.             </footer>
    400. 

  400.         </main>
    401. 

  401. 

  402.         <div id="retype-page-footer" class="print:border-none border-t border-base-border pt-6 mb-8">
    403. 

  403.             <footer class="flex flex-wrap items-center justify-between print:justify-center">
    404. 

  404.                 <div id="retype-footer-links" class="print:hidden">
    405. 

  405.                     <ul class="flex flex-wrap items-center text-sm">
    406. 

  406.                     </ul>
    407. 

  407.                 </div>
    408. 

  408.                 <div id="retype-copyright" class="print:justify-center py-2 text-footer-text font-footer-link text-sm leading-relaxed"><p>© Copyright 2026 - <a href="https://github.com/blueloveTH">blueloveTH</a> - All rights reserved.</p></div>
    409. 

  409.             </footer>
    410. 

  410.         </div>
    411. 

  411.     </div>
    412. 

  412. 

  413.     <!-- Rendered if sidebar right is enabled -->
    414. 

  414.     <!-- Sidebar right skeleton-->
    415. 

  415.     <div v-cloak class="fixed top-0 bottom-0 right-0 translate-x-full bg-sidebar-right-bg border-sidebar-right-border lg:sticky lg:border-l lg:shrink-0 lg:pt-6 lg:translate-x-0 sm:w-1/2 lg:w-64 lg:z-0 md:w-104 sidebar-right skeleton">
    416. 

  416.         <div class="pl-5">
    417. 

  417.             <div class="w-32 h-3 mb-4 bg-skeleton-bg rounded-full loading"></div>
    418. 

  418.             <div class="w-48 h-3 mb-4 bg-skeleton-bg rounded-full loading"></div>
    419. 

  419.             <div class="w-40 h-3 mb-4 bg-skeleton-bg rounded-full loading"></div>
    420. 

  420.         </div>
    421. 

  421.     </div>
    422. 

  422. 

  423.     <!-- User should be able to hide sidebar right -->
    424. 

  424.     <doc-sidebar-right v-cloak></doc-sidebar-right>
    425. 

  425. </div>
    426. 

  426. 

  427.         </div>
    428. 

  428.     </div>
    429. 

  429. 

  430.     <doc-search-mobile></doc-search-mobile>
    431. 

  431.     <doc-back-to-top></doc-back-to-top>
    432. 

  432. </div>
    433. 

  433. 

  434. 

  435.     <div id="retype-overlay-target"></div>
    436. 

  436. 

  437.     <script data-cfasync="false">window.__DOCS__ = { "title": "Debugging", level: 2, icon: "file", hasPrism: true, hasMermaid: false, hasMath: false, tocDepth: 23 }</script>
    438. 

  438. </body>
    439. 

  439. </html>
    440.