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{
"name": "huggingface-gradio",
"description": "Build Gradio web UIs and demos in Python. Use when creating or editing Gradio apps, components, event listeners, layouts, or chatbots.",
"included_files": [],
"skill_md_contents": "---\nname: huggingface-gradio\ndescription: Build Gradio web UIs and demos in Python. Use when creating or editing Gradio apps, components, event listeners, layouts, or chatbots.\n---\n\n# Gradio\n\nGradio is a Python library for building interactive web UIs and ML demos. This skill covers the core API, patterns, and examples.\n\n## Guides\n\nDetailed guides on specific topics (read these when relevant):\n\n- [Quickstart](https://www.gradio.app/guides/quickstart)\n- [The Interface Class](https://www.gradio.app/guides/the-interface-class)\n- [Blocks and Event Listeners](https://www.gradio.app/guides/blocks-and-event-listeners)\n- [Controlling Layout](https://www.gradio.app/guides/controlling-layout)\n- [More Blocks Features](https://www.gradio.app/guides/more-blocks-features)\n- [Custom CSS and JS](https://www.gradio.app/guides/custom-CSS-and-JS)\n- [Streaming Outputs](https://www.gradio.app/guides/streaming-outputs)\n- [Streaming Inputs](https://www.gradio.app/guides/streaming-inputs)\n- [Sharing Your App](https://www.gradio.app/guides/sharing-your-app)\n- [Custom HTML Components](https://www.gradio.app/guides/custom-HTML-components)\n- [Getting Started with the Python Client](https://www.gradio.app/guides/getting-started-with-the-python-client)\n- [Getting Started with the JS Client](https://www.gradio.app/guides/getting-started-with-the-js-client)\n\n## Core Patterns\n\n**Interface** (high-level): wraps a function with input/output components.\n\n```python\nimport gradio as gr\n\ndef greet(name):\n return f\"Hello {name}!\"\n\ngr.Interface(fn=greet, inputs=\"text\", outputs=\"text\").launch()\n```\n\n**Blocks** (low-level): flexible layout with explicit event wiring.\n\n```python\nimport gradio as gr\n\nwith gr.Blocks() as demo:\n name = gr.Textbox(label=\"Name\")\n output = gr.Textbox(label=\"Greeting\")\n btn = gr.Button(\"Greet\")\n btn.click(fn=lambda n: f\"Hello {n}!\", inputs=name, outputs=output)\n\ndemo.launch()\n```\n\n**ChatInterface**: high-level wrapper for chatbot UIs.\n\n```python\nimport gradio as gr\n\ndef respond(message, history):\n return f\"You said: {message}\"\n\ngr.ChatInterface(fn=respond).launch()\n```\n\n## Key Component Signatures\n\n### `Textbox(value: str | I18nData | Callable | None = None, type: Literal['text', 'password', 'email'] = \"text\", lines: int = 1, max_lines: int | None = None, placeholder: str | I18nData | None = None, label: str | I18nData | None = None, info: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, autofocus: bool = False, autoscroll: bool = True, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", text_align: Literal['left', 'right'] | None = None, rtl: bool = False, buttons: list[Literal['copy'] | Button] | None = None, max_length: int | None = None, submit_btn: str | bool | None = False, stop_btn: str | bool | None = False, html_attributes: InputHTMLAttributes | None = None)`\nCreates a textarea for user to enter string input or display string output..\n\n### `Number(value: float | Callable | None = None, label: str | I18nData | None = None, placeholder: str | I18nData | None = None, info: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", buttons: list[Button] | None = None, precision: int | None = None, minimum: float | None = None, maximum: float | None = None, step: float = 1)`\nCreates a numeric field for user to enter numbers as input or display numeric output..\n\n### `Slider(minimum: float = 0, maximum: float = 100, value: float | Callable | None = None, step: float | None = None, precision: int | None = None, label: str | I18nData | None = None, info: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", randomize: bool = False, buttons: list[Literal['reset']] | None = None)`\nCreates a slider that ranges from {minimum} to {maximum} with a step size of {step}..\n\n### `Checkbox(value: bool | Callable = False, label: str | I18nData | None = None, info: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", buttons: list[Button] | None = None)`\nCreates a checkbox that can be set to `True` or `False`.\n\n### `Dropdown(choices: Sequence[str | int | float | tuple[str, str | int | float]] | None = None, value: str | int | float | Sequence[str | int | float] | Callable | DefaultValue | None = DefaultValue(), type: Literal['value', 'index'] = \"value\", multiselect: bool | None = None, allow_custom_value: bool = False, max_choices: int | None = None, filterable: bool = True, label: str | I18nData | None = None, info: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", buttons: list[Button] | None = None)`\nCreates a dropdown of choices from which a single entry or multiple entries can be selected (as an input component) or displayed (as an output component)..\n\n### `Radio(choices: Sequence[str | int | float | tuple[str, str | int | float]] | None = None, value: str | int | float | Callable | None = None, type: Literal['value', 'index'] = \"value\", label: str | I18nData | None = None, info: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", rtl: bool = False, buttons: list[Button] | None = None)`\nCreates a set of (string or numeric type) radio buttons of which only one can be selected..\n\n### `Image(value: str | PIL.Image.Image | np.ndarray | Callable | None = None, format: str = \"webp\", height: int | str | None = None, width: int | str | None = None, image_mode: Literal['1', 'L', 'P', 'RGB', 'RGBA', 'CMYK', 'YCbCr', 'LAB', 'HSV', 'I', 'F'] | None = \"RGB\", sources: list[Literal['upload', 'webcam', 'clipboard']] | Literal['upload', 'webcam', 'clipboard'] | None = None, type: Literal['numpy', 'pil', 'filepath'] = \"numpy\", label: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, buttons: list[Literal['download', 'share', 'fullscreen'] | Button] | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, streaming: bool = False, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", webcam_options: WebcamOptions | None = None, placeholder: str | None = None, watermark: WatermarkOptions | None = None)`\nCreates an image component that can be used to upload images (as an input) or display images (as an output)..\n\n### `Audio(value: str | Path | tuple[int, np.ndarray] | Callable | None = None, sources: list[Literal['upload', 'microphone']] | Literal['upload', 'microphone'] | None = None, type: Literal['numpy', 'filepath'] = \"numpy\", label: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, streaming: bool = False, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", format: Literal['wav', 'mp3'] | None = None, autoplay: bool = False, editable: bool = True, buttons: list[Literal['download', 'share'] | Button] | None = None, waveform_options: WaveformOptions | dict | None = None, loop: bool = False, recording: bool = False, subtitles: str | Path | list[dict[str, Any]] | None = None, playback_position: float = 0)`\nCreates an audio component that can be used to upload/record audio (as an input) or display audio (as an output)..\n\n### `Video(value: str | Path | Callable | None = None, format: str | None = None, sources: list[Literal['upload', 'webcam']] | Literal['upload', 'webcam'] | None = None, height: int | str | None = None, width: int | str | None = None, label: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", webcam_options: WebcamOptions | None = None, include_audio: bool | None = None, autoplay: bool = False, buttons: list[Literal['download', 'share'] | Button] | None = None, loop: bool = False, streaming: bool = False, watermark: WatermarkOptions | None = None, subtitles: str | Path | list[dict[str, Any]] | None = None, playback_position: float = 0)`\nCreates a video component that can be used to upload/record videos (as an input) or display videos (as an output).\n\n### `File(value: str | list[str] | Callable | None = None, file_count: Literal['single', 'multiple', 'directory'] = \"single\", file_types: list[str] | None = None, type: Literal['filepath', 'binary'] = \"filepath\", label: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, height: int | str | float | None = None, interactive: bool | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", allow_reordering: bool = False, buttons: list[Button] | None = None)`\nCreates a file component that allows uploading one or more generic files (when used as an input) or displaying generic files or URLs for download (as output).\n\n### `Chatbot(value: list[MessageDict | Message] | Callable | None = None, label: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, autoscroll: bool = True, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", height: int | str | None = 400, resizable: bool = False, max_height: int | str | None = None, min_height: int | str | None = None, editable: Literal['user', 'all'] | None = None, latex_delimiters: list[dict[str, str | bool]] | None = None, rtl: bool = False, buttons: list[Literal['share', 'copy', 'copy_all'] | Button] | None = None, watermark: str | None = None, avatar_images: tuple[str | Path | None, str | Path | None] | None = None, sanitize_html: bool = True, render_markdown: bool = True, feedback_options: list[str] | tuple[str, ...] | None = ('Like', 'Dislike'), feedback_value: Sequence[str | None] | None = None, line_breaks: bool = True, layout: Literal['panel', 'bubble'] | None = None, placeholder: str | None = None, examples: list[ExampleMessage] | None = None, allow_file_downloads: <class 'inspect._empty'> = True, group_consecutive_messages: bool = True, allow_tags: list[str] | bool = True, reasoning_tags: list[tuple[str, str]] | None = None, like_user_message: bool = False)`\nCreates a chatbot that displays user-submitted messages and responses.\n\n### `Button(value: str | I18nData | Callable = \"Run\", every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, variant: Literal['primary', 'secondary', 'stop', 'huggingface'] = \"secondary\", size: Literal['sm', 'md', 'lg'] = \"lg\", icon: str | Path | None = None, link: str | None = None, link_target: Literal['_self', '_blank', '_parent', '_top'] = \"_self\", visible: bool | Literal['hidden'] = True, interactive: bool = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", scale: int | None = None, min_width: int | None = None)`\nCreates a button that can be assigned arbitrary .click() events.\n\n### `Markdown(value: str | I18nData | Callable | None = None, label: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, rtl: bool = False, latex_delimiters: list[dict[str, str | bool]] | None = None, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", sanitize_html: bool = True, line_breaks: bool = False, header_links: bool = False, height: int | str | None = None, max_height: int | str | None = None, min_height: int | str | None = None, buttons: list[Literal['copy']] | None = None, container: bool = False, padding: bool = False)`\nUsed to render arbitrary Markdown output.\n\n### `HTML(value: Any | Callable | None = None, label: str | I18nData | None = None, html_template: str = \"${value}\", css_template: str = \"\", js_on_load: str | None = \"element.addEventListener('click', function() { trigger('click') });\", apply_default_css: bool = True, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool = False, visible: bool | Literal['hidden'] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = \"value\", min_height: int | None = None, max_height: int | None = None, container: bool = False, padding: bool = False, autoscroll: bool = False, buttons: list[Button] | None = None, props: Any)`\nCreates a component with arbitrary HTML.\n\n\n## Custom HTML Components\n\nIf a task requires significant customization of an existing component or a component that doesn't exist in Gradio, you can create one with `gr.HTML`. It supports `html_template` (with `${}` JS expressions and `{{}}` Handlebars syntax), `css_template` for scoped styles, and `js_on_load` for interactivity — where `props.value` updates the component value and `trigger('event_name')` fires Gradio events. For reuse, subclass `gr.HTML` and define `api_info()` for API/MCP support. See the [full guide](https://www.gradio.app/guides/custom-HTML-components).\n\nHere's an example that shows how to create and use these kinds of components:\n\n```python\nimport gradio as gr\n\nclass StarRating(gr.HTML):\n def __init__(self, label, value=0, **kwargs):\n html_template = \"\"\"\n <h2>${label} rating:</h2>\n ${Array.from({length: 5}, (_, i) => `<img class='${i < value ? '' : 'faded'}' src='https://upload.wikimedia.org/wikipedia/commons/d/df/Award-star-gold-3d.svg'>`).join('')}\n \"\"\"\n css_template = \"\"\"\n img { height: 50px; display: inline-block; cursor: pointer; }\n .faded { filter: grayscale(100%); opacity: 0.3; }\n \"\"\"\n js_on_load = \"\"\"\n const imgs = element.querySelectorAll('img');\n imgs.forEach((img, index) => {\n img.addEventListener('click', () => {\n props.value = index + 1;\n });\n });\n \"\"\"\n super().__init__(value=value, label=label, html_template=html_template, css_template=css_template, js_on_load=js_on_load, **kwargs)\n\n def api_info(self):\n return {\"type\": \"integer\", \"minimum\": 0, \"maximum\": 5}\n\n\nwith gr.Blocks() as demo:\n gr.Markdown(\"# Restaurant Review\")\n food_rating = StarRating(label=\"Food\", value=3)\n service_rating = StarRating(label=\"Service\", value=3)\n ambience_rating = StarRating(label=\"Ambience\", value=3)\n average_btn = gr.Button(\"Calculate Average Rating\")\n rating_output = StarRating(label=\"Average\", value=3)\n def calculate_average(food, service, ambience):\n return round((food + service + ambience) / 3)\n average_btn.click(\n fn=calculate_average,\n inputs=[food_rating, service_rating, ambience_rating],\n outputs=rating_output\n )\n\ndemo.launch()\n```\n\n## Event Listeners\n\nAll event listeners share the same signature:\n\n```python\ncomponent.event_name(\n fn: Callable | None | Literal[\"decorator\"] = \"decorator\",\n inputs: Component | Sequence[Component] | set[Component] | None = None,\n outputs: Component | Sequence[Component] | set[Component] | None = None,\n api_name: str | None = None,\n api_description: str | None | Literal[False] = None,\n scroll_to_output: bool = False,\n show_progress: Literal[\"full\", \"minimal\", \"hidden\"] = \"full\",\n show_progress_on: Component | Sequence[Component] | None = None,\n queue: bool = True,\n batch: bool = False,\n max_batch_size: int = 4,\n preprocess: bool = True,\n postprocess: bool = True,\n cancels: dict[str, Any] | list[dict[str, Any]] | None = None,\n trigger_mode: Literal[\"once\", \"multiple\", \"always_last\"] | None = None,\n js: str | Literal[True] | None = None,\n concurrency_limit: int | None | Literal[\"default\"] = \"default\",\n concurrency_id: str | None = None,\n api_visibility: Literal[\"public\", \"private\", \"undocumented\"] = \"public\",\n time_limit: int | None = None,\n stream_every: float = 0.5,\n key: int | str | tuple[int | str, ...] | None = None,\n validator: Callable | None = None,\n) -> Dependency\n```\n\nSupported events per component:\n\n- **AnnotatedImage**: select\n- **Audio**: stream, change, clear, play, pause, stop, pause, start_recording, pause_recording, stop_recording, upload, input\n- **BarPlot**: select, double_click\n- **BrowserState**: change\n- **Button**: click\n- **Chatbot**: change, select, like, retry, undo, example_select, option_select, clear, copy, edit\n- **Checkbox**: change, input, select\n- **CheckboxGroup**: change, input, select\n- **ClearButton**: click\n- **Code**: change, input, focus, blur\n- **ColorPicker**: change, input, submit, focus, blur\n- **Dataframe**: change, input, select, edit\n- **Dataset**: click, select\n- **DateTime**: change, submit\n- **DeepLinkButton**: click\n- **Dialogue**: change, input, submit\n- **DownloadButton**: click\n- **Dropdown**: change, input, select, focus, blur, key_up\n- **DuplicateButton**: click\n- **File**: change, select, clear, upload, delete, download\n- **FileExplorer**: change, input, select\n- **Gallery**: select, upload, change, delete, preview_close, preview_open\n- **HTML**: change, input, click, double_click, submit, stop, edit, clear, play, pause, end, start_recording, pause_recording, stop_recording, focus, blur, upload, release, select, stream, like, example_select, option_select, load, key_up, apply, delete, tick, undo, retry, expand, collapse, download, copy\n- **HighlightedText**: change, select\n- **Image**: clear, change, stream, select, upload, input\n- **ImageEditor**: clear, change, input, select, upload, apply\n- **ImageSlider**: clear, change, stream, select, upload, input\n- **JSON**: change\n- **Label**: change, select\n- **LinePlot**: select, double_click\n- **LoginButton**: click\n- **Markdown**: change, copy\n- **Model3D**: change, upload, edit, clear\n- **MultimodalTextbox**: change, input, select, submit, focus, blur, stop\n- **Navbar**: change\n- **Number**: change, input, submit, focus, blur\n- **ParamViewer**: change, upload\n- **Plot**: change\n- **Radio**: select, change, input\n- **ScatterPlot**: select, double_click\n- **SimpleImage**: clear, change, upload\n- **Slider**: change, input, release\n- **State**: change\n- **Textbox**: change, input, select, submit, focus, blur, stop, copy\n- **Timer**: tick\n- **UploadButton**: click, upload\n- **Video**: change, clear, start_recording, stop_recording, stop, play, pause, end, upload, input\n\n## Additional Reference\n\n- [End-to-End Examples](examples.md) — complete working apps\n"
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