Python logging library is printing logs on file two times?

Question

I am working on a Python project where I will have to print the logs and at the same time store the logs in a file. The problem that's occurring is that the logs are getting printed in the console in the preferred way where each line is being printed once but the logs are stored in the file in an invalid way where each line is printed twice in the file. I went through the solution here Python logging module is printing lines multiple times and implemented this one but this did not solve the problem. So the logging module is in a different file called logs.py and I am calling this file from other modules. Please do note that this logs.py is being called my 8 other modules and when called it should have just one instance

#logs.py

import logging
import logging.handlers

def get_name():
    with open("latestLogNames.txt") as f:
        for line in f:
            pass
        latestLog = line
    logfile_name = latestLog[:-1]
    return logfile_name

def setLogger(logfile_name):
    logger = logging.getLogger(__name__)
    if not getattr(logger, 'handler_set', None):
        logger.setLevel(logging.INFO)
        stream_handler = logging.StreamHandler()
        file_handler = logging.FileHandler(logfile_name)
        formatter = logging.Formatter('%(message)s')
        file_handler.setFormatter(formatter)
        logger.addHandler(file_handler)
        logger.addHandler(stream_handler)
        logger.setLevel(logging.INFO)
        logger.propagate = False
        logger.handler_set = True
    return logger

I am calling this from a different file like this:

logger = logs.setLogger(logs.get_name())

So instead of the print("......") I am implementing logger.info("......")