Logging with progress bar

logging_progress_bar.py

import logging
import time
from tqdm import tqdm

class TqdmHandler(logging.StreamHandler):
    def __init__(self):
        logging.StreamHandler.__init__(self)
        
    def emit(self, record):
        msg = self.format(record)
        tqdm.write(msg)

if __name__ == "__main__":
                                
    log = logging.getLogger("myapp")
    log.setLevel(logging.INFO)

    # create formatter and add it to the handlers
    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')

    # basic console logger: receives messages too
    ch = TqdmHandler() # instead of: ch = logging.StreamHandler()
    ch.setLevel(logging.INFO)
    ch.setFormatter(formatter)
    log.addHandler(ch)

    # additionally, log to file
    logFileName = 'file.log'
    fileLog = logging.FileHandler(logFileName, 'w', 'utf-8')
    fileLog.setLevel(logging.INFO)
    fileLog.setFormatter(formatter)
    log.addHandler(fileLog)
    
    log.info('Start')
    
    for x in tqdm(range(10)):
        log.info("Inside subtask: "+str(x))
        time.sleep(.5)
        
    log.info('Stop')

    log.removeHandler(ch)
    log.removeHandler(fileLog)