python logging close logger

Question

I am trying to close a logger in the sense that I Want it to be close and reopened when a new pbject is created:

import logging, logging.config

class myclass:

    def __init__(self, data):
        """ Initializes the main attributes of the parent class """
        logging.config.dictConfig({'version': 1, 'disable_existing_loggers': True})
        logging.basicConfig(filename='test.log',
                            format='',
                            filemode='w',  # Overrides existing log file
                            level=logging.INFO)  # DO NOT RAISE LEVEL
        self.lgr = logging.getLogger('mylogger')
        self.lgr.info(f"data is {data}")
        self.data=data


a = myclass(data=1)
b = myclass(data=15)

test.log now contains:

data is 1
data is 15

I would have wanted to only contain 15, basically the file containing data is 1 would have been overwritten.