Streamlit

命令行

# alias st="streamlit"
 
streamlit run --help
# run and open browser
streamlit run {script}
# do not open browser
streamlit run --server.headless true {script}
# run on localhost
streamlit run --server.headless true --server.address localhost --server.port {port} {script}

注意:

不能使用 3000 作为 port! 这看起来是一个 bug (issue (opens in a new tab)).

调整 Button 宽度

https://discuss.streamlit.io/t/button-size-in-sidebar/36132/2 (opens in a new tab)

import streamlit as st
 
st.markdown('''
    <style>
        section[data-testid="stSidebar"] div.stButton button {
            width: 20rem;
        }
    </style>
''', unsafe_allow_html=True)
 
with st.sidebar:
    st.button('One')
    st.button('Two')
    st.button('Three')
    st.button('Four')

在前端打印日志

keywords: console log logger print terminal

import lk_logger  # pip install lk-logger
import streamlit as st
 
if 'log' not in st.session_state:
    st.session_state['log'] = []
 
with st.container():
    st.write('\n\n'.join(st.session_state['log']))
 
# notice: session modification must be in main thread!
lk_logger.update(async_=False)
lk_logger.lk.add_pipe(st.session_state['log'].append)
 
print('hello')
print('world')

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