pyscript/pyscript.core/pyscript.js

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w={type:r,interpreter:o,XWorker:y,io:ze.get(o),config:structuredClone(ut.get(u)),run:a.run.bind(a,o),runAsync:a.runAsync.bind(a,o)};n(w),l?.(w,e)}))}}},Ot=new Map,Tt=e=>(Wt.has(e)||Wt.set(e,Promise.withResolvers()),Wt.get(e).promise),Bt=ft.join(","),Ct=new MutationObserver((e=>{for(const{type:r,target:n,attributeName:s,addedNodes:o}of e)if("attributes"!==r){for(const e of o)if(1===e.nodeType)if(xt(e),e.matches(Bt))Rt(e);else{if(t(Bt,e).forEach(Rt),!jt.length)continue;_t(e),t(jt.join(","),e).forEach(_t)}}else{const e=s.lastIndexOf("-")+1;if(e){const t=s.slice(0,e);for(const r of pt)if(t===r){const t=s.slice(e);if("env"!==t){const e=n.hasAttribute(s)?"add":"remove";n[`${e}EventListener`](t,$t)}break}}}})),Ft=e=>(Ct.observe(e,{childList:!0,subtree:!0,attributes:!0}),e),{attachShadow:It}=Element.prototype;We(Element.prototype,{attachShadow(e){return Ft(It.call(this,e))}}),xt(Ft(document)),t(Bt,document).forEach(Rt);const Lt="PY0001",Ut="PY0401",Gt="PY0403",Nt="PY0404",Dt="PY0500",Jt="PY0503";class zt extends Error{constructor(e,t="",r="text"){super(`(${e}): ${t}`),this.errorCode=e,this.messageType=r,this.name="UserError"}}class qt extends zt{constructor(e,t){super(e,t),this.name="FetchError"}}async function Yt(e,t){let r;try{r=await fetch(e,t)}catch(t){const r=t;let n;throw n=e.startsWith("http")?`Fetching from URL ${e} failed with error '${r.message}'. Are your filename and path correct?`:'PyScript: Access to local files\n        (using [[fetch]] configurations in &lt;py-config&gt;)\n        is not available when directly opening a HTML file;\n        you must use a webserver to serve the additional files.\n        See <a style="text-decoration: underline;" href="https://github.com/pyscript/pyscript/issues/257#issuecomment-1119595062">this reference</a>\n        on starting a simple webserver with Python.\n            ',new qt(Lt,n)}if(!r.ok){const t=`Fetching from URL ${e} failed with error ${r.status} (${r.statusText}). Are your filename and path correct?`;switch(r.status){case 404:throw new qt(Nt,t);case 401:throw new qt(Ut,t);case 403:throw new qt(Gt,t);case 500:throw new qt(Dt,t);case 503:throw new qt(Jt,t);default:throw new qt(Lt,t)}}return r}document.head.appendChild(document.createElement("style")).textContent="\n  py-script, py-config {\n    display: none;\n  }\n",(async()=>{let r=0;const n=(e="py")=>`${e}-${r++}`;let s,o=e("py-config");o?s=o.getAttribute("src")||o.textContent:(o=e('script[type="py"]'),s=o?.getAttribute("config")),/^https?:\/\//.test(s)&&(s=await Yt(s).then(Ue));const a=e=>"SCRIPT"===e.tagName,i=e=>{Te(document,"currentScript",{configurable:!0,get:()=>e})},c=()=>{delete document.currentScript},l=async e=>{if(e.hasAttribute("src"))try{return(await Yt(e.getAttribute("src"))).then(Ue)}catch(e){throw alert(e.message),e}return e.textContent},u=(e,t,r,n)=>{a(t)&&r(t);for(const r of Xt[n])r(e,t)},f=e=>`\n            # this code is just for demo purpose but the basics work\n            def _display(what, target="${a(e)?e.target.id:e.id}", append=True):\n                from js import document\n                element = document.getElementById(target)\n                element.textContent = what\n            display = _display\n        `;((e,r)=>{if(lt.has(e)||Ot.has(e))throw new Error(`<script type="${e}"> already registered`);if(!lt.has(r?.interpreter))throw new Error("Unspecified interpreter");lt.set(e,lt.get(r?.interpreter)),Tt(e);const n=[`script[type="${e}"]`,`${e}-script`];for(const t of n)Mt.set(t,e);jt.push(...n),pt.push(`${e}-`),Ot.set(e,{options:We({env:e},r),known:new WeakSet}),xt(document),t(n.join(",")).forEach(_t)})("py",{config:s,env:"py-script",interpreter:"pyodide",codeBeforeRunWorker:()=>[...Xt.codeBeforeRunWorker].join("\n"),codeAfterRunWorker:()=>[...Xt.codeAfterRunWorker].join("\n"),onBeforeRun(e,t){u(e,t,i,"onBeforeRun"),e.interpreter.runPython(f(t))},onBeforeRunAync(e,t){e.interpreter.runPython(f(t)),u(e,t,i,"onBeforeRunAync")},onAfterRun(e,t){u(e,t,c,"onAfterRun")},onAfterRunAsync(e,t){u(e,t,c,"onAfterRunAsync")},async onRuntimeReady(e,t){for(const r of Xt.onRuntimeReady)r(e,t);if(a(t)){const{attributes:{async:r,target:s}}=t,o=!!s?.value,a=o?mt(s.value):document.createElement("script-py");o||t.after(a),a.id||(a.id=n()),Te(t,"target",{value:a}),e["run"+(r?"Async":"")](await l(t))}else t._pyodide.resolve(e)}});class p extends HTMLElement{constructor(){super().id||(this.id=n()),this._pyodide=Promise.withResolvers(),this.srcCode="",this.executed=!1}async connectedCallback(){if(!this.executed){this.executed=!0;const{run:e}=await this._pyodide.promise;this.srcCode=await l(this),this.textContent="";const t=e(this.srcCode);!this.textContent&&t&&(this.textContent=t),this.style.display="block"}}}customElements.define("py-script",p)})();const Xt={onBeforeRun:new Set,onBeforeRunAync:new Set,onAfterRun:new Set,onAfterRunAsync:new Set,onRuntimeReady:new Set,codeBeforeRunWorker:new Set,codeBeforeRunWorkerAsync:new Set,codeAfterRunWorker:new Set,codeAfterRunWorkerAsync:new Set};export{Xt as hooks};