Error Handling

PyFyre Error Barrier

PyFyre has an error handling feature that you are going to love - inspired by Remix Error Boundary. Handle errors on every component separately. When an error interrupts the build method on the component, theonerror method will be called and you can handle it professionally without blowing the entire app. Override the onerror method by declaring another onerror method to your component and taking another parameter where the error exception will pass. You can return a widget in which the UI you want your users to see temporarily.

from pyfyre.widgets import *
from pyfyre.pyfyre import runApp

class App(UsesState):
    def build(self):
        None in 5 # Produces TypeError

        return Text("Hello, my awesome app!")

    def onerror(self, error):
        return Text("Oops! Something went wrong.")

runApp(
    App(),
    mount="app-mount"
)

Error Barrier example