I want a debug log console in the UI. best if it is in a side or bottom panel
Streamlit does not have a built-in logging console, but you can mimic one using the st.text or st.text_area function which allows for updating text on the screen.
First, you need to define a class that will be used for logging, this class will redirect the output to the Streamlit interface. Below is an example of how you can do it:
import streamlit as st
import sys
class StreamlitLogger(object):
"""Logger that will log output in Streamlit app"""
def __init__(self):
self.log_messages = ''
def write(self, message):
if message != '\n':
self.log_messages += message
def flush(self):
st.text(self.log_messages)
def get(self):
return self.log_messages
You can then use it in your Streamlit application as follows:
logger = StreamlitLogger()
sys.stdout = logger # redirect standard output to the logger
print("This message will be logged.")
logger.flush() # display the log message in the Streamlit app
Remember that you should call logger.flush() each time you want to update the console in your Streamlit app with the latest logs.
Also, you can get back to standard console output at any time using:
sys.stdout = sys.__stdout__ # get back to standard console output
Please keep in mind that such logging mechanism doesn't provide features you may be accustomed to in standard Python logging, such as different logging levels (DEBUG, INFO, WARN, etc.) or logging to files. If you need more sophisticated logging, you should consider implementing your own version of StreamlitLogger based on Python's built-in logging library.
I want a debug log console in the UI. best if it is in a side or bottom panel
Streamlit does not have a built-in logging console, but you can mimic one using the
st.text
orst.text_area
function which allows for updating text on the screen.First, you need to define a class that will be used for logging, this class will redirect the output to the Streamlit interface. Below is an example of how you can do it:
You can then use it in your Streamlit application as follows:
Remember that you should call
logger.flush()
each time you want to update the console in your Streamlit app with the latest logs.Also, you can get back to standard console output at any time using:
Please keep in mind that such logging mechanism doesn't provide features you may be accustomed to in standard Python logging, such as different logging levels (DEBUG, INFO, WARN, etc.) or logging to files. If you need more sophisticated logging, you should consider implementing your own version of
StreamlitLogger
based on Python's built-in logging library.