U ARd& @s>ddlmZmZddlmZer,ddlmZGdddZdS)) TYPE_CHECKINGcast)Empty)DeltaGeneratorc@s,eZdZddddZeddddZdS) EmptyMixinr)returncCst}|jd|S)uInsert a single-element container. Inserts a container into your app that can be used to hold a single element. This allows you to, for example, remove elements at any point, or replace several elements at once (using a child multi-element container). To insert/replace/clear an element on the returned container, you can use "with" notation or just call methods directly on the returned object. See examples below. Examples -------- Overwriting elements in-place using "with" notation: >>> import streamlit as st >>> import time >>> >>> with st.empty(): ... for seconds in range(60): ... st.write(f"⏳ {seconds} seconds have passed") ... time.sleep(1) ... st.write("✔️ 1 minute over!") Replacing several elements, then clearing them: >>> import streamlit as st >>> >>> placeholder = st.empty() >>> >>> # Replace the placeholder with some text: >>> placeholder.text("Hello") >>> >>> # Replace the text with a chart: >>> placeholder.line_chart({"data": [1, 5, 2, 6]}) >>> >>> # Replace the chart with several elements: >>> with placeholder.container(): ... st.write("This is one element") ... st.write("This is another") ... >>> # Clear all those elements: >>> placeholder.empty() empty) EmptyProtodgZ_enqueue)selfZ empty_protor s