Introducing Gradio 5.0

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  1. Components
  2. Code

New to Gradio? Start here: Getting Started

See the Release History

To install Gradio from main, run the following command:

pip install https://gradio-builds.s3.amazonaws.com/9285dd9eb842ee05bd8a0fd4f0f9143788096bbc/gradio-5.9.1-py3-none-any.whl

*Note: Setting share=True in launch() will not work.

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ClearButton

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Code

gradio.Code(···)
import gradio as gr with gr.Blocks() as demo: gr.Code(language="python", value=""" import gradio as gr def hello(name): return "hello " + name interface = gr.Interface(hello, "text", "text") interface.launch() """, interactive=True, lines=6) demo.launch()

Description

Creates a code editor for viewing code (as an output component), or for entering and editing code (as an input component).

Behavior

As input component: Passes the code entered as a str.

Your function should accept one of these types:
def predict(
	value: str | None
)
	...

As output component: Expects a str of code.

Your function should return one of these types:
def predict(···) -> tuple[str] | str | None
	...	
	return value

Initialization

Parameters 
value: str | Callable | None
default = None

Default value to show in the code editor. If callable, the function will be called whenever the app loads to set the initial value of the component.

language: Literal['python', 'c', 'cpp', 'markdown', 'json', 'html', 'css', 'javascript', 'jinja2', 'typescript', 'yaml', 'dockerfile', 'shell', 'r', 'sql', 'sql-msSQL', 'sql-mySQL', 'sql-mariaDB', 'sql-sqlite', 'sql-cassandra', 'sql-plSQL', 'sql-hive', 'sql-pgSQL', 'sql-gql', 'sql-gpSQL', 'sql-sparkSQL', 'sql-esper'] | None
default = None

The language to display the code as. Supported languages listed in `gr.Code.languages`.

every: Timer | float | None
default = None

Continously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer.

inputs: Component | list[Component] | set[Component] | None
default = None

Components that are used as inputs to calculate `value` if `value` is a function (has no effect otherwise). `value` is recalculated any time the inputs change.

lines: int
default = 5

Minimum number of visible lines to show in the code editor.

max_lines: int | None
default = None

Maximum number of visible lines to show in the code editor. Defaults to None and will fill the height of the container.

label: str | None
default = None

the label for this component. Appears above the component and is also used as the header if there are a table of examples for this component. If None and used in a `gr.Interface`, the label will be the name of the parameter this component is assigned to.

interactive: bool | None
default = None

Whether user should be able to enter code or only view it.

show_label: bool | None
default = None

if True, will display label.

container: bool
default = True

If True, will place the component in a container - providing some extra padding around the border.

scale: int | None
default = None

relative size compared to adjacent Components. For example if Components A and B are in a Row, and A has scale=2, and B has scale=1, A will be twice as wide as B. Should be an integer. scale applies in Rows, and to top-level Components in Blocks where fill_height=True.

min_width: int
default = 160

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

visible: bool
default = True

If False, component 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.

elem_classes: list[str] | str | None
default = None

An optional list of strings that are assigned as the classes of this component in the HTML DOM. Can be used for targeting CSS styles.

render: bool
default = True

If False, component will not render be rendered in the Blocks context. Should be used if the intention is to assign event listeners now but render the component later.

key: int | str | None
default = None

if assigned, will be used to assume identity across a re-render. Components that have the same key across a re-render will have their value preserved.

wrap_lines: bool
default = False

If True, will wrap lines to the width of the container when overflow occurs. Defaults to False.

Shortcuts

Class Interface String Shortcut Initialization

gradio.Code

"code"

 Uses default values

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

Listener Description

Code.languages(fn, ···)

['python', 'c', 'cpp', 'markdown', 'json', 'html', 'css', 'javascript', 'jinja2', 'typescript', 'yaml', 'dockerfile', 'shell', 'r', 'sql', 'sql-msSQL', 'sql-mySQL', 'sql-mariaDB', 'sql-sqlite', 'sql-cassandra', 'sql-plSQL', 'sql-hive', 'sql-pgSQL', 'sql-gql', 'sql-gpSQL', 'sql-sparkSQL', 'sql-esper', None]

Code.change(fn, ···)

Triggered when the value of the Code 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.

Code.input(fn, ···)

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

Code.focus(fn, ···)

This listener is triggered when the Code is focused.

Code.blur(fn, ···)

This listener is triggered when the Code is unfocused/blurred.

Event Parameters

Parameters
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