eliminate py-env altogether (#775)

* examples use toml now

* use 0.21.2 for now

* change config in docs

* fix pre-commit

pyscriptjs/src/components/pyenv.ts

@@ -1,82 +0,0 @@
-import * as jsyaml from 'js-yaml';
-
-import { runtimeLoaded, addInitializer } from '../stores';
-import { handleFetchError } from '../utils';
-import type { Runtime } from '../runtime';
-import { getLogger } from '../logger';
-
-const logger = getLogger('py-env');
-
-// Premise used to connect to the first available runtime (can be pyodide or others)
-let runtime: Runtime;
-
-runtimeLoaded.subscribe(value => {
-    runtime = value;
-});
-
-export class PyEnv extends HTMLElement {
-    shadow: ShadowRoot;
-    wrapper: HTMLElement;
-    code: string;
-    environment: unknown;
-    runtime: Runtime;
-    env: string[];
-    paths: string[];
-
-    constructor() {
-        super();
-
-        this.shadow = this.attachShadow({ mode: 'open' });
-        this.wrapper = document.createElement('slot');
-    }
-
-    connectedCallback() {
-        logger.info("The <py-env> tag is deprecated, please use <py-config> instead.")
-        this.code = this.innerHTML;
-        this.innerHTML = '';
-
-        const env: string[] = [];
-        const paths: string[] = [];
-
-        this.environment = jsyaml.load(this.code);
-        if (this.environment === undefined) return;
-
-        for (const entry of Array.isArray(this.environment) ? this.environment : []) {
-            if (typeof entry == 'string') {
-                env.push(entry);
-            } else if (entry && typeof entry === 'object') {
-                const obj = <Record<string, unknown>>entry;
-                for (const path of Array.isArray(obj.paths) ? obj.paths : []) {
-                    if (typeof path === 'string') {
-                        paths.push(path);
-                    }
-                }
-            }
-        }
-
-        this.env = env;
-        this.paths = paths;
-
-        async function loadEnv() {
-            logger.info("Loading env: ", env);
-            await runtime.installPackage(env);
-        }
-
-        async function loadPaths() {
-            logger.info("Paths to load: ", paths)
-            for (const singleFile of paths) {
-                logger.info(`  loading path: ${singleFile}`);
-                try {
-                    await runtime.loadFromFile(singleFile);
-                } catch (e) {
-                    //Should we still export full error contents to console?
-                    handleFetchError(<Error>e, singleFile);
-                }
-            }
-            logger.info("All paths loaded");
-        }
-
-        addInitializer(loadEnv);
-        addInitializer(loadPaths);
-    }
-}