Radio

gradio.Radio(···)

import gradio as gr with gr.Blocks() as demo: gr.Radio(choices=["First Choice", "Second Choice", "Third Choice"]) demo.launch()

Description

Creates a set of (string or numeric type) radio buttons of which only one can be selected.

Behavior

As input component: Passes the value of the selected radio button as a `str | int | float`, or its index as an `int` into the function, depending on `type`.

Your function should accept one of these types:

def predict(
	value: str | int | float | None
)
	...

As output component: Expects a `str | int | float` corresponding to the value of the radio button to be selected

Your function should return one of these types:

def predict(···) -> str | int | float | None
	...	
	return value

Initialization

Shortcuts

Class	Interface String Shortcut	Initialization
`gradio.Radio`	"radio"	Uses default values

Demos

import gradio as gr def sentence_builder(quantity, animal, countries, place, activity_list, morning): return f"""The {quantity} {animal}s from {" and ".join(countries)} went to the {place} where they {" and ".join(activity_list)} until the {"morning" if morning else "night"}""" demo = gr.Interface( sentence_builder, [ gr.Slider(2, 20, value=4, label="Count", info="Choose between 2 and 20"), gr.Dropdown( ["cat", "dog", "bird"], label="Animal", info="Will add more animals later!" ), gr.CheckboxGroup(["USA", "Japan", "Pakistan"], label="Countries", info="Where are they from?"), gr.Radio(["park", "zoo", "road"], label="Location", info="Where did they go?"), gr.Dropdown( ["ran", "swam", "ate", "slept"], value=["swam", "slept"], multiselect=True, label="Activity", info="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed auctor, nisl eget ultricies aliquam, nunc nisl aliquet nunc, eget aliquam nisl nunc vel nisl." ), gr.Checkbox(label="Morning", info="Did they do it in the morning?"), ], "text", examples=[ [2, "cat", ["Japan", "Pakistan"], "park", ["ate", "swam"], True], [4, "dog", ["Japan"], "zoo", ["ate", "swam"], False], [10, "bird", ["USA", "Pakistan"], "road", ["ran"], False], [8, "cat", ["Pakistan"], "zoo", ["ate"], True], ] ) if __name__ == "__main__": demo.launch()

import gradio as gr

def sentence_builder(quantity, animal, countries, place, activity_list, morning):
    return f"""The {quantity} {animal}s from {" and ".join(countries)} went to the {place} where they {" and ".join(activity_list)} until the {"morning" if morning else "night"}"""

demo = gr.Interface(
    sentence_builder,
    [
        gr.Slider(2, 20, value=4, label="Count", info="Choose between 2 and 20"),
        gr.Dropdown(
            ["cat", "dog", "bird"], label="Animal", info="Will add more animals later!"
        ),
        gr.CheckboxGroup(["USA", "Japan", "Pakistan"], label="Countries", info="Where are they from?"),
        gr.Radio(["park", "zoo", "road"], label="Location", info="Where did they go?"),
        gr.Dropdown(
            ["ran", "swam", "ate", "slept"], value=["swam", "slept"], multiselect=True, label="Activity", info="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed auctor, nisl eget ultricies aliquam, nunc nisl aliquet nunc, eget aliquam nisl nunc vel nisl."
        ),
        gr.Checkbox(label="Morning", info="Did they do it in the morning?"),
    ],
    "text",
    examples=[
        [2, "cat", ["Japan", "Pakistan"], "park", ["ate", "swam"], True],
        [4, "dog", ["Japan"], "zoo", ["ate", "swam"], False],
        [10, "bird", ["USA", "Pakistan"], "road", ["ran"], False],
        [8, "cat", ["Pakistan"], "zoo", ["ate"], True],
    ]
)

if __name__ == "__main__":
    demo.launch()

import gradio as gr countries_cities_dict = { "USA": ["New York", "Los Angeles", "Chicago"], "Canada": ["Toronto", "Montreal", "Vancouver"], "Pakistan": ["Karachi", "Lahore", "Islamabad"], } def change_textbox(choice): if choice == "short": return gr.Textbox(lines=2, visible=True), gr.Button(interactive=True) elif choice == "long": return gr.Textbox(lines=8, visible=True, value="Lorem ipsum dolor sit amet"), gr.Button(interactive=True) else: return gr.Textbox(visible=False), gr.Button(interactive=False) with gr.Blocks() as demo: radio = gr.Radio( ["short", "long", "none"], label="What kind of essay would you like to write?" ) text = gr.Textbox(lines=2, interactive=True, show_copy_button=True) with gr.Row(): num = gr.Number(minimum=0, maximum=100, label="input") out = gr.Number(label="output") minimum_slider = gr.Slider(0, 100, 0, label="min") maximum_slider = gr.Slider(0, 100, 100, label="max") submit_btn = gr.Button("Submit", variant="primary") with gr.Row(): country = gr.Dropdown(list(countries_cities_dict.keys()), label="Country") cities = gr.Dropdown([], label="Cities") @country.change(inputs=country, outputs=cities) def update_cities(country): cities = list(countries_cities_dict[country]) return gr.Dropdown(choices=cities, value=cities[0], interactive=True) def reset_bounds(minimum, maximum): return gr.Number(minimum=minimum, maximum=maximum) radio.change(fn=change_textbox, inputs=radio, outputs=[text, submit_btn]) gr.on( [minimum_slider.change, maximum_slider.change], reset_bounds, [minimum_slider, maximum_slider], outputs=num, ) num.submit(lambda x: x, num, out) if __name__ == "__main__": demo.launch()

import gradio as gr

countries_cities_dict = {
    "USA": ["New York", "Los Angeles", "Chicago"],
    "Canada": ["Toronto", "Montreal", "Vancouver"],
    "Pakistan": ["Karachi", "Lahore", "Islamabad"],
}

def change_textbox(choice):
    if choice == "short":
        return gr.Textbox(lines=2, visible=True), gr.Button(interactive=True)
    elif choice == "long":
        return gr.Textbox(lines=8, visible=True, value="Lorem ipsum dolor sit amet"), gr.Button(interactive=True)
    else:
        return gr.Textbox(visible=False), gr.Button(interactive=False)

with gr.Blocks() as demo:
    radio = gr.Radio(
        ["short", "long", "none"], label="What kind of essay would you like to write?"
    )
    text = gr.Textbox(lines=2, interactive=True, show_copy_button=True)

    with gr.Row():
        num = gr.Number(minimum=0, maximum=100, label="input")
        out = gr.Number(label="output")
    minimum_slider = gr.Slider(0, 100, 0, label="min")
    maximum_slider = gr.Slider(0, 100, 100, label="max")
    submit_btn = gr.Button("Submit", variant="primary")

    with gr.Row():
        country = gr.Dropdown(list(countries_cities_dict.keys()), label="Country")
        cities = gr.Dropdown([], label="Cities")

    @country.change(inputs=country, outputs=cities)
    def update_cities(country):
        cities = list(countries_cities_dict[country])
        return gr.Dropdown(choices=cities, value=cities[0], interactive=True)

    def reset_bounds(minimum, maximum):
        return gr.Number(minimum=minimum, maximum=maximum)

    radio.change(fn=change_textbox, inputs=radio, outputs=[text, submit_btn])
    gr.on(
        [minimum_slider.change, maximum_slider.change],
        reset_bounds,
        [minimum_slider, maximum_slider],
        outputs=num,
    )
    num.submit(lambda x: x, num, out)

if __name__ == "__main__":
    demo.launch()

Event Listeners

Description

Event listeners allow you to respond to user interactions with the UI components you've defined in a Gradio Blocks app. When a user interacts with an element, such as changing a slider value or uploading an image, a function is called.

Supported Event Listeners

The Radio component supports the following event listeners. Each event listener takes the same parameters, which are listed in the Event Parameters table below.

Listener	Description
`Radio.select(fn, ···)`	Event listener for when the user selects or deselects the Radio. Uses event data gradio.SelectData to carry `value` referring to the label of the Radio, and `selected` to refer to state of the Radio. See EventData documentation on how to use this event data
`Radio.change(fn, ···)`	Triggered when the value of the Radio changes either because of user input (e.g. a user types in a textbox) OR because of a function update (e.g. an image receives a value from the output of an event trigger). See `.input()` for a listener that is only triggered by user input.
`Radio.input(fn, ···)`	This listener is triggered when the user changes the value of the Radio.

Event Parameters

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Radio

Description

Creates a set of (string or numeric type) radio buttons of which only one can be selected.

Behavior

As input component: Passes the value of the selected radio button as a str | int | float, or its index as an int into the function, depending on type.

Your function should accept one of these types:

As output component: Expects a str | int | float corresponding to the value of the radio button to be selected

Your function should return one of these types:

Initialization

Shortcuts

Demos

Event Listeners

Description

Supported Event Listeners

Event Parameters

As input component: Passes the value of the selected radio button as a `str | int | float`, or its index as an `int` into the function, depending on `type`.

As output component: Expects a `str | int | float` corresponding to the value of the radio button to be selected