nicegui/examples/modularization/class_example.py

import theme
from message import message

from nicegui import ui


class ClassExample:

    def __init__(self) -> None:
        """The page is created as soon as the class is instantiated.

        This can obviously also be done in a method, if you want to decouple the instantiation of the object from the page creation.
        """
        @ui.page('/b')
        def page_b():
            with theme.frame('- Page B -'):
                message('Page B')
                ui.label('This page is defined in a class.')