streamlit-framework/test_st.py at main · sy2384/streamlit-framework · GitHub

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import streamlit as st
import numpy as np
import pandas as pd
import time

st.title('My first app')

st.write("Here's our first attempt at using data to create a table:")

df = pd.DataFrame({
        'first column': [1, 2, 3, 4],
        'second column': [10, 20, 30, 40]
        })

df

# draw line chart
st.write("First attempt to create line chart:")

chart_data = pd.DataFrame(
    np.random.randn(20, 3),
    columns=['a', 'b', 'c']
    )
st.line_chart(chart_data)

# Plot on map
st.write('First attempt to create map:')

map_data = pd.DataFrame(
    np.random.randn(1000, 2)/[50, 50] + [37.76, -122.4],
    columns=['lat', 'lon']
    )
st.map(map_data)

# Checkbox
st.write('Checkbox:')

if st.checkbox('Show dataframe'):
    chart_data = pd.DataFrame(
        np.random.randn(20, 3),
        columns=['a', 'b', 'c']
        )
    chart_data

# Selectbox
# st.write('Selectbox:')

# option = st.selectbox(
#     'Which number do you like best?',
#     df['first column'])

# 'You selected: ', option

# Move widgets to sidebar
# option = st.sidebar.selectbox(
#     'Which number do you like best?',
#     df['first column'])

# 'You selected: ', option

left_column, right_column = st.columns(2)
pressed = left_column.button('Press me?')
if pressed:
    right_column.write('Woohoo!')

expander = st.expander('FAQ')
expander.write("Some really really long explanations...")

# Show progress
'Starting a long computation...'

# Add a placeholder
latest_iteration = st.empty()
bar = st.progress(0)

for i in range(100):
    # Update the progress bar with each iteration
    latest_iteration.text(f'Iteration {i+1}')
    bar.progress(i+1)
    time.sleep(0.1)

'...and now we\'re done!'