# Interface: `IOptions`

[@jupyterlite/pyolite-kernel](../modules/jupyterlite_pyolite_kernel.md).[IPyoliteWorkerKernel](../modules/jupyterlite_pyolite_kernel.IPyoliteWorkerKernel.md).IOptions

Initialization options for a worker.

## Hierarchy

- `IOptions`

  ↳ **`IOptions`**

## Properties

### `baseUrl`

> **`baseUrl`**: `string`

The base URL of the kernel server.

#### Inherited from

IWorkerKernel.IOptions.baseUrl

#### Defined in

packages/kernel/lib/tokens.d.ts:151

### `disablePyPIFallback`

> **`disablePyPIFallback`**: `boolean`

Whether `piplite` should fall back to the hard-coded `pypi.org` for resolving packages.

#### Defined in

[packages/pyolite-kernel/src/tokens.ts:58](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/pyolite-kernel/src/tokens.ts#L58)

### `indexUrl`

> **`indexUrl`**: `string`

The URL of a pyodide index file in the standard pyodide layout.

#### Defined in

[packages/pyolite-kernel/src/tokens.ts:43](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/pyolite-kernel/src/tokens.ts#L43)

### `location`

> **`location`**: `string`

The current working directory in which to start the kernel.

#### Defined in

[packages/pyolite-kernel/src/tokens.ts:63](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/pyolite-kernel/src/tokens.ts#L63)

### `mountDrive`

> **`mountDrive`**: `boolean`

Whether or not to mount the Emscripten drive

#### Defined in

[packages/pyolite-kernel/src/tokens.ts:68](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/pyolite-kernel/src/tokens.ts#L68)

### `pipliteUrls`

> **`pipliteUrls`**: `string`[]

The URLs of additional warehouse-like wheel listings.

#### Defined in

[packages/pyolite-kernel/src/tokens.ts:53](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/pyolite-kernel/src/tokens.ts#L53)

### `pipliteWheelUrl`

> **`pipliteWheelUrl`**: `string`

The URL of the `piplite` wheel for bootstrapping.

#### Defined in

[packages/pyolite-kernel/src/tokens.ts:48](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/pyolite-kernel/src/tokens.ts#L48)

### `pyodideUrl`

> **`pyodideUrl`**: `string`

The URL of the main `pyodide.js` file in the standard pyodide layout.

#### Defined in

[packages/pyolite-kernel/src/tokens.ts:38](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/pyolite-kernel/src/tokens.ts#L38)