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3 lines
46 KiB
JavaScript
3 lines
46 KiB
JavaScript
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browser will not be able to\n # render it.\n if isinstance(value, bytes):\n value = base64.b64encode(value).decode("utf-8")\n\n # This is the pattern of base64 strings\n base64_pattern = re.compile(\n r"^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?$"\n )\n # If value doesn\'t match the base64 pattern we should encode it to base64\n if len(value) > 0 and not base64_pattern.match(value):\n value = base64.b64encode(value.encode("utf-8")).decode("utf-8")\n\n data = f"data:{mime};charset=utf-8;base64,{value}"\n attrs = " ".join([\'{k}="{v}"\' for k, v in meta.items()])\n return f\'<img src="{data}" {attrs}></img>\'\n\n\ndef _identity(value, meta):\n return value\n\n\n_MIME_RENDERERS = {\n "text/plain": html.escape,\n "text/html": _identity,\n "image/png": lambda value, meta: _render_image("image/png", value, meta),\n "image/jpeg": lambda value, meta: _render_image("image/jpeg", value, meta),\n "image/svg+xml": _identity,\n "application/json": _identity,\n "application/javascript": lambda value, meta: f"<script>{value}<\\\\/script>",\n}\n\n\ndef _eval_formatter(obj, print_method):\n """\n Evaluates a formatter method.\n """\n if print_method == "__repr__":\n return repr(obj)\n elif hasattr(obj, print_method):\n if print_method == "savefig":\n buf = io.BytesIO()\n obj.savefig(buf, format="png")\n buf.seek(0)\n return base64.b64encode(buf.read()).decode("utf-8")\n return getattr(obj, print_method)()\n elif print_method == "_repr_mimebundle_":\n return {}, {}\n return None\n\n\ndef _format_mime(obj):\n """\n Formats object using _repr_x_ methods.\n """\n if isinstance(obj, str):\n return html.escape(obj), "text/plain"\n\n mimebundle = _eval_formatter(obj, "_repr_mimebundle_")\n if isinstance(mimebundle, tuple):\n format_dict, _ = mimebundle\n else:\n format_dict = mimebundle\n\n output, not_available = None, []\n for method, mime_type in reversed(_MIME_METHODS.items()):\n if mime_type in format_dict:\n output = format_dict[mime_type]\n else:\n output = _eval_formatter(obj, method)\n\n if output is None:\n continue\n elif mime_type not in _MIME_RENDERERS:\n not_available.append(mime_type)\n continue\n break\n if output is None:\n if not_available:\n window.console.warn(\n f"Rendered object requested unavailable MIME renderers: {not_available}"\n )\n output = repr(output)\n mime_type = "text/plain"\n elif isinstance(output, tuple):\n output, meta = output\n else:\n meta = {}\n return _MIME_RENDERERS[mime_type](output, meta), mime_type\n\n\ndef _write(element, value, append=False):\n html, mime_type = _format_mime(value)\n if html == "\\\\n":\n return\n\n if append:\n out_element = document.createElement("div")\n element.append(out_element)\n else:\n out_element = element.lastElementChild\n if out_element is None:\n out_element = element\n\n if mime_type in ("application/javascript", "text/html"):\n script_element = document.createRange().createContextualFragment(html)\n out_element.append(script_element)\n else:\n out_element.innerHTML = html\n\n\ndef display(*values, target=None, append=True):\n element = document.getElementById(target)\n for v in values:\n _write(element, v, append=append)\n'},"pyscript.py":"# export only what we want to expose as `pyscript` module\n# but not what is WORKER/MAIN dependent\nfrom _pyscript import window, document, IS_WORKER\n\n# this part is needed to disambiguate between MAIN and WORKER\nif IS_WORKER:\n # in workers the display does not have a default ID\n # but there is a sync utility from xworker\n from _pyscript.display import display\n from _pyscript import sync\nelse:\n # in MAIN both PyWorker and a runtime currentScript.id exist\n # so these are both exposed and the display, if imported,\n # will point at the right script as default target\n PyWorker = window._pyscript.PyWorker\n\n def __getattr__(attribute_name):\n if attribute_name == \"display\":\n from _pyscript.display import display\n\n id = window._pyscript.id\n return lambda *values, target=id, append=True: display(\n *values, target=target, append=append\n )\n raise AttributeError(f\"'{__name__}' has no attribute '{attribute_name}'\")\n"}),Jt.push("del _Path"),Jt.push("\n");var Dt=Jt.join("\n");const Ut="PY0001",zt="PY0401",qt="PY0403",Qt="PY0404",Yt="PY0500",Kt="PY0503";class Xt extends Error{constructor(e,t="",r="text"){super(`(${e}): ${t}`),this.errorCode=e,this.messageType=r,this.name="UserError"}}class Vt extends Xt{constructor(e,t){super(e,t),this.name="FetchError"}}async function Zt(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?`:'Polyscript: Access to local files\n (using [[fetch]] configurations in <py-config>)\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 Vt(Ut,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 Vt(Qt,t);case 401:throw new Vt(zt,t);case 403:throw new Vt(qt,t);case 500:throw new Vt(Yt,t);case 503:throw new Vt(Kt,t);default:throw new Vt(Ut,t)}}return r}const{assign:Gt,defineProperty:er}=Object,tr=e=>e.text();let rr,nr=0;const sr=(e="py")=>`${e}-${nr++}`;let or,ar=e("py-config");ar?or=ar.getAttribute("src")||ar.textContent:(ar=e('script[type="py"]'),or=ar?.getAttribute("config")),/^https?:\/\//.test(or)&&(or=await Zt(or).then(tr));const ir=e=>"SCRIPT"===e.tagName,cr=e=>{er(document,"currentScript",{configurable:!0,get:()=>e})},lr=()=>{delete document.currentScript},ur=async(e,t,r)=>{if(e.hasAttribute("src"))try{return await Zt(e.getAttribute("src")).then(tr)}catch(e){t.stderr(e)}return r?e.textContent:(console.warn('Deprecated: use <script type="py"> for an always safe content parsing:\n',e.innerHTML),Lt(e.innerHTML))},pr=(e,t,r,n)=>{ir(t)&&r(t);for(const r of dr[n])r(e,t)};let fr=!0;const dr={onBeforeRun:new Set,onBeforeRunAync:new Set,onAfterRun:new Set,onAfterRunAsync:new Set,onInterpreterReady:new Set,codeBeforeRunWorker:new Set,codeBeforeRunWorkerAsync:new Set,codeAfterRunWorker:new Set,codeAfterRunWorkerAsync:new Set},yr={codeBeforeRunWorker:()=>[Dt,...dr.codeBeforeRunWorker].join("\n"),codeBeforeRunWorkerAsync:()=>[Dt,...dr.codeBeforeRunWorkerAsync].join("\n"),codeAfterRunWorker:()=>[...dr.codeAfterRunWorker].join("\n"),codeAfterRunWorkerAsync:()=>[...dr.codeAfterRunWorkerAsync].join("\n")};((e,r)=>{if(at.has(e)||$t.has(e))throw new Error(`<script type="${e}"> already registered`);if(!at.has(r?.interpreter))throw new Error("Unspecified interpreter");at.set(e,at.get(r?.interpreter)),Mt(e);const n=[`script[type="${e}"]`,`${e}-script`];for(const t of n)Rt.set(t,e);Pt.push(...n),lt.push(`${e}-`),$t.set(e,{options:Se({env:e},r),known:new WeakSet}),St(document),t(n.join(",")).forEach(jt)})("py",{config:or,env:"py-script",interpreter:"pyodide",...yr,onWorkerReady(e,t){Gt(t.sync,Nt)},onBeforeRun(e,t){rr=t,pr(e,t,cr,"onBeforeRun")},onBeforeRunAync(e,t){rr=t,pr(e,t,cr,"onBeforeRunAync")},onAfterRun(e,t){pr(e,t,lr,"onAfterRun")},onAfterRunAsync(e,t){pr(e,t,lr,"onAfterRunAsync")},async onInterpreterReady(e,t){fr&&(fr=!1,(({XWorker:e,interpreter:t,io:r})=>{er(globalThis,"_pyscript",{value:{PyWorker:function(...t){const n=e(...t);return n.onerror=({error:e})=>r.stderr(e),n},get id(){return ir(rr)?rr.target.id:rr.id}}}),t.runPython(Dt,{globals:t.runPython("{}")})})(e));for(const r of dr.onInterpreterReady)r(e,t);if(ir(t)){const{attributes:{async:r,target:n}}=t,s=!!n?.value,o=s?ht(n.value):document.createElement("script-py");if(!s){const{head:e,body:r}=document;e.contains(t)?r.append(o):t.after(o)}o.id||(o.id=sr()),er(t,"target",{value:o}),e["run"+(r?"Async":"")](await ur(t,e.io,!0))}else t._pyodide.resolve(e)}});class hr extends HTMLElement{constructor(){Gt(super(),{_pyodide:Promise.withResolvers(),srcCode:"",executed:!1})}get id(){return super.id||(super.id=sr())}set id(e){super.id=e}async connectedCallback(){if(!this.executed){this.executed=!0;const{io:e,run:t}=await this._pyodide.promise;this.srcCode=await ur(this,e,!this.childElementCount),this.replaceChildren(),t(this.srcCode),this.style.display="block"}}}function mr(e,t){const r=Wt.call(new Be(null,yr),e,{...t,type:"pyodide"});return Gt(r.sync,Nt),r}customElements.define("py-script",hr);export{mr as PyWorker,dr as hooks};
|