Class PyodidePreloader

Private_configWatcher

Private Readonly_context

Private_isPreloading

Private Readonly_logger

Private_executeNativePreload

• _executeNativePreload(
      _pyodideVersion: string,
      packages: string[],
      progress: Progress<{ increment?: number; message?: string }>,
  ): Promise<void>

  Preload packages for NATIVE notebooks (Node.js filesystem cache). NOTE: Native notebooks use the npm Pyodide package (0.29.0), so we ONLY download packages, NOT core files. Core files come from npm package, not CDN!

  Parameters

  • _pyodideVersion: string
  • packages: string[]
  • progress: Progress<{ increment?: number; message?: string }>

  Returns Promise<void>

Private_executeWebviewPreload

• _executeWebviewPreload(
      packages: string[],
      progress: Progress<{ increment?: number; message?: string }>,
  ): Promise<void>

  Preload packages for WEBVIEW notebooks (browser IndexedDB cache). Creates a hidden webview panel that downloads packages via micropip. NOTE: Currently disabled due to poor UX (see line 262).

  Parameters

  • packages: string[]
  • progress: Progress<{ increment?: number; message?: string }>

  Returns Promise<void>

Private_getPackagesKey

• _getPackagesKey(packages: string[]): string

  Generate a stable key from package list AND version for caching

  Parameters

  • packages: string[]

  Returns string

Private_getPreloadHtml

• _getPreloadHtml(
      _webview: Webview,
      pyodideVersion: string,
      packages: string[],
  ): string

  Generate minimal HTML for preloading Pyodide

  Parameters

  • _webview: Webview
  • pyodideVersion: string
  • packages: string[]

  Returns string

Private_onConfigChanged

• _onConfigChanged(): Promise<void>

  Handle configuration changes

  Returns Promise<void>

Private_promptUserForPreload

• _promptUserForPreload(): Promise<void>

  Prompt user on first startup if they want to preload packages

  Returns Promise<void>

Private_startPreload

• _startPreload(): Promise<void>

  Start preloading packages in background

  Returns Promise<void>

Private_watchConfigChanges

• _watchConfigChanges(): void

  Watch for configuration changes and trigger preload if packages or version changed

  Returns void