File Browser

class marimo.ui.file_browser(initial_path: str = '', filetypes: Sequence[str] | None = None, selection_mode: str = 'file', multiple: bool = True, restrict_navigation: bool = False, *, label: str = '', on_change: Callable[[Sequence[FileInfo]], None] | None = None)

File browser for browsing and selecting server-side files.

Examples.

Selecting multiple files:

file_browser = mo.ui.file_browser(
    initial_path="path/to/dir", multiple=True
)

# Access the selected file path(s):
file_browser.path(index)

# Get name of selected file(s)
file_browser.name(index)

Attributes.

  • value: a sequence of file paths representing selected files.

Initialization Args.

  • initial_path: starting directory, default current working directory.

  • filetypes: the file types to display in each directory; for example, filetypes=[".txt", ".csv"]. If None, all files are displayed.

  • selection_mode: either “file” or “directory”.

  • multiple: if True, allow the user to select multiple files.

  • restrict_navigation: if True, prevent the user from navigating any level above the given path.

  • label: markdown label for the element

  • on_change: optional callback to run when this element’s value changes

Public methods

list_directory(args)

name([index])

Get file name at index.

path([index])

Get file path at index.
Inherited from UIElement

form([label, bordered, loading, ...])

Create a submittable form out of this UIElement.

send_message(message, buffers)

Send a message to the element rendered on the frontend from the backend.
Inherited from Html

batch(**elements)

Convert an HTML object with templated text into a UI element.

center()

Center an item.

right()

Right-justify.

left()

Left-justify.

callout([kind])

Create a callout containing this HTML element.

style([style])

Wrap an object in a styled container.

Public Data Attributes:

Inherited from UIElement

value

The element’s current value.
Inherited from Html

text

A string of HTML representing this element.
name(index: int = 0) → str | None

Get file name at index.

path(index: int = 0) → str | None

Get file path at index.