Introducing Gradio Clients


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See the Release History


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


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


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(ยทยทยท) -> str | int | float | None
	return value




Class Interface String Shortcut Initialization



Uses default values


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()

Event Listeners


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, ยทยทยท)

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, ยทยทยท)

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, ยทยทยท)

This listener is triggered when the user changes the value of the Radio.

Event Parameters