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Block Layouts

Description

Customize the layout of your Blocks UI with the layout classes below.

Row 

with gradio.Row():

Description

Row is a layout element within Blocks that renders all children horizontally.

Example Usage 

with gr.Blocks() as demo:
    with gr.Row():
        gr.Image("lion.jpg", scale=2)
        gr.Image("tiger.jpg", scale=1)
demo.launch()

Initialization

Parameter Description
variant

Literal['default', 'panel', 'compact']

default: "default"

row type, 'default' (no background), 'panel' (gray background color and rounded corners), or 'compact' (rounded corners and no internal gap).
visible

bool

default: True

If False, row will be hidden.
elem_id

str | None

default: None

An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.
equal_height

bool

default: True

If True, makes every child element have equal height

Column 

with gradio.Column():

Description

Column is a layout element within Blocks that renders all children vertically. The widths of columns can be set through the `scale` and `min_width` parameters. If a certain scale results in a column narrower than min_width, the min_width parameter will win.

Example Usage 

with gr.Blocks() as demo:
    with gr.Row():
        with gr.Column(scale=1):
            text1 = gr.Textbox()
            text2 = gr.Textbox()
        with gr.Column(scale=4):
            btn1 = gr.Button("Button 1")
            btn2 = gr.Button("Button 2")

Initialization

Parameter Description
scale

int

default: 1

relative width compared to adjacent Columns. For example, if Column A has scale=2, and Column B has scale=1, A will be twice as wide as B.
min_width

int

default: 320

minimum pixel width of Column, will wrap if not sufficient screen space to satisfy this value. If a certain scale value results in a column narrower than min_width, the min_width parameter will be respected first.
variant

Literal['default', 'panel', 'compact']

default: "default"

column type, 'default' (no background), 'panel' (gray background color and rounded corners), or 'compact' (rounded corners and no internal gap).
visible

bool

default: True

If False, column will be hidden.
elem_id

str | None

default: None

An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.

Tab 

with gradio.Tab():

Description

Tab (or its alias TabItem) is a layout element. Components defined within the Tab will be visible when this tab is selected tab.

Example Usage 

with gr.Blocks() as demo:
    with gr.Tab("Lion"):
        gr.Image("lion.jpg")
        gr.Button("New Lion")
    with gr.Tab("Tiger"):
        gr.Image("tiger.jpg")
        gr.Button("New Tiger")

Initialization

Parameter Description
label

str

required

The visual label for the tab
id

int | str | None

default: None

An optional identifier for the tab, required if you wish to control the selected tab from a predict function.
elem_id

str | None

default: None

An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.

Methods

select 

gradio.Tab.select(fn, ···)

Description

This listener is triggered when the user selects from within the Component. This event has EventData of type gradio.SelectData that carries information, accessible through SelectData.index and SelectData.value. See EventData documentation on how to use this event data.

Agruments

Parameter Description
fn

Callable | None

required

the function to wrap an interface around. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component.
inputs

Component | list[Component] | set[Component] | None

default: None

List of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list.
outputs

Component | list[Component] | None

default: None

List of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list.
api_name

str | None | Literal[False]

default: None

Defines how the endpoint appears in the API docs. Can be a string, None, or False. If False, the endpoint will not be exposed in the api docs. If set to None, the endpoint will be exposed in the api docs as an unnamed endpoint, although this behavior will be changed in Gradio 4.0. If set to a string, the endpoint will be exposed in the api docs with the given name.
status_tracker

None

default: None

scroll_to_output

bool

default: False

If True, will scroll to output component on completion
show_progress

Literal['full', 'minimal', 'hidden']

default: "full"

If True, will show progress animation while pending
queue

bool | None

default: None

If True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app.
batch

bool

default: False

If True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component.
max_batch_size

int

default: 4

Maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True)
preprocess

bool

default: True

If False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component).
postprocess

bool

default: True

If False, will not run postprocessing of component data before returning 'fn' output to the browser.
cancels

dict[str, Any] | list[dict[str, Any]] | None

default: None

A list of other events to cancel when This listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish.
every

float | None

default: None

Run this event 'every' number of seconds while the client connection is open. Interpreted in seconds. Queue must be enabled.

Box 

with gradio.Box():

Description

Box is a a layout element which places children in a box with rounded corners and some padding around them.

Example Usage 

with gr.Box():
    gr.Textbox(label="First")
    gr.Textbox(label="Last")

Initialization

Parameter Description
visible

bool

default: True

If False, box will be hidden.
elem_id

str | None

default: None

An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.

Accordion 

gradio.Accordion(label, ···)

Description

Accordion is a layout element which can be toggled to show/hide the contained content.

Example Usage 

with gr.Accordion("See Details"):
    gr.Markdown("lorem ipsum")

Initialization

Parameter Description
label

<class 'inspect._empty'>

required

name of accordion section.
open

bool

default: True

if True, accordion is open by default.
visible

bool

default: True

elem_id

str | None

default: None

An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.
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