Code Editor for app.py

import streamlit as st
import pandas as pd

# Function to read CSV from URL and cache the result.
@st.cache_data
def load_data(url):
    return pd.read_csv(url)

st.title('Penguins Data Viewer')

# Text input for URL with a default value.
url = st.text_input('Enter CSV URL:',
                    'https://raw.githubusercontent.com/mwaskom/seaborn-data/master/penguins.csv')

# Load the data.
try:
    df = load_data(url)
    st.write('Data loaded successfully!')
    st.dataframe(df)
except Exception as e:
    st.write('Error loading data:', e)

# Control for number of rows to display.
num_rows = st.slider('Select number of rows to display:', 1, len(df), 10)

# Checkbox to shuffle the DataFrame.
shuffle = st.checkbox('Shuffle DataFrame')

# Display the DataFrame based on controls.
if shuffle:
    df = df.sample(frac=1).reset_index(drop=True)

st.table(df.head(num_rows))