Code Editor for app.py

import streamlit as st
import random
import time
import plotly.express as px

# Streamed response emulator
def response_generator():
    response = random.choice(
        [
            "Hello! How can I assist you with plotting today?",
            "Hi! Do you want me to create a plot for you?",
            "What kind of data visualization would you like?",
        ]
    )
    for word in response.split():
        yield word + " "
        time.sleep(0.2)

st.title("Chat and Plotly Interface")

# Initialize chat history
if "messages" not in st.session_state:
    st.session_state.messages = []

# Display chat messages from history on app rerun
for message in st.session_state.messages:
    with st.chat_message(message["role"):
        st.markdown(message["content")

# Accept user input
if prompt := st.chat_input("What would you like to plot?"):
    # Add user message to chat history
    st.session_state.messages.append({"role": "user", "content": prompt})
    # Display user message in chat message container
    with st.chat_message("user"):
        st.markdown(prompt)

    # Example of generating and displaying a plot
    if "plot" in prompt.lower():
        # Sample data for plot
df = px.data.iris()
        fig = px.scatter(
            df,
            x="sepal_width",
            y="sepal_length",
            color="species",
            size="petal_length",
            hover_data=["petal_width"],
        )

        # Display the plot
        with st.chat_message("assistant"):
            st.plotly_chart(fig, use_container_width=True)
            response_content = "Here is the plot you requested!"
    else:
        with st.chat_message("assistant"):
            response_content = "I can only create plots. Please specify a plot request."
    # Add assistant response to chat history
    st.session_state.messages.append({"role": "assistant", "content": response_content})