[Python] root logger not respecting log level Python

I am trying to get my head around Python logging in general and I have created a small code to do so. Below is my main code file:

import logging.config

logging.config.fileConfig('logging-2.conf')
logger = logging.getLogger('main')
import auxillary


logger.info("Info message from main file")
logger.warning("This is a warning message from main file")


My logging configuration file goes as follows:

[loggers]
keys=root, main

[handlers]
keys=mainhandler, roothandler

[formatters]
keys=mainformatter

[logger_root]
level=ERROR
handlers = roothandler

[logger_main]
level=DEBUG
handlers=mainhandler
qualname=main
propagate=1

[handler_roothandler]
class=StreamHandler
args=(sys.stdout,)

[handler_mainhandler]
class=FileHandler
formatter=mainformatter
args=("main.log",)

[formatter_mainformatter]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s


And below is the code of the auxillary.py file:

import logging

module_logger = logging.getLogger('main.auxiliary')

module_logger.info("Info statement from auxillary function")
module_logger.warning("warning message from auxillary function")


When I run the code I get the following output:

Info statement from auxillary function
warning message from auxillary function
Info message from main file
This is a warning message from main file


And the contents of my main.log file is as follows:

2019-07-28 16:52:05,710 - main.auxiliary - INFO - Info statement from auxillary function
2019-07-28 16:52:05,710 - main.auxiliary - WARNING - warning message from auxillary function
2019-07-28 16:52:05,710 - main - INFO - Info message from main file
2019-07-28 16:52:05,710 - main - WARNING - This is a warning message from main file


In other words, even after setting the log level to ERROR for the root logger it is printing all the messages.

Any idea why is this happening? How should I force the root logger to only print messages from error and above even if propagate is true for it.

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