The Dependency object is usualy not created directly but is returned when an event listener is set up. It contains the configuration data for the event listener, and can be used to set up additional event listeners that depend on the completion of the current event listener using .then() and .success().
Demos
import gradio as gr
import random
import time
with gr.Blocks() as demo:
chatbot = gr.Chatbot()
msg = gr.Textbox()
clear = gr.Button("Clear")
def user(user_message, history):
return "", history + [[user_message, None]]
def bot(history):
bot_message = random.choice(["How are you?", "I love you", "I'm very hungry"])
time.sleep(2)
history[-1][1] = bot_message
return history
msg.submit(user, [msg, chatbot], [msg, chatbot], queue=False).then(
bot, chatbot, chatbot
)
clear.click(lambda: None, None, chatbot, queue=False)
demo.queue()
if __name__ == "__main__":
demo.launch()
import gradio as gr
import time
def failure():
raise gr.Error("This should fail!")
def exception():
raise ValueError("Something went wrong")
def success():
return True
def warning_fn():
gr.Warning("This is a warning!")
def info_fn():
gr.Info("This is some info")
with gr.Blocks() as demo:
gr.Markdown("Used in E2E tests of success event trigger. The then event covered in chatbot E2E tests."
" Also testing that the status modals show up.")
with gr.Row():
result = gr.Textbox(label="Result")
result_2 = gr.Textbox(label="Consecutive Event")
with gr.Row():
success_btn = gr.Button(value="Trigger Success")
success_btn_2 = gr.Button(value="Trigger Consecutive Success")
failure_btn = gr.Button(value="Trigger Failure")
failure_exception = gr.Button(value="Trigger Failure With ValueError")
with gr.Row():
trigger_warning = gr.Button(value="Trigger Warning")
trigger_info = gr.Button(value="Trigger Info")
success_btn_2.click(success, None, None).success(lambda: "First Event Trigered", None, result).success(lambda: "Consecutive Event Triggered", None, result_2)
success_btn.click(success, None, None).success(lambda: "Success event triggered", inputs=None, outputs=result)
failure_btn.click(failure, None, None).success(lambda: "Should not be triggered", inputs=None, outputs=result)
failure_exception.click(exception, None, None)
trigger_warning.click(warning_fn, None, None)
trigger_info.click(info_fn, None, None)
demo.queue()
if __name__ == "__main__":
demo.launch(show_error=True)
