[Python] DeprecationWarning: the formatter module is deprecated and empty log file is being...

I'm trying to test my understanding of logging in Python but seems I'm missing something. There are two questions I have. First is when I start the program I get a message: "DeprecationWarning: the formatter module is deprecated" What does this mean? Is there a different way I'm supposed to set the formatting? Is my formatting obsolete?

The second questions is when the code is executed I see that a file is created but when I open it it's empty. I went through some of the topics here but couldn't find a solution.

I'm on a mac not sure if this makes a difference, but still.

The code:

import formatter, logging, sys

logger = logging.getLogger(__name__)
console_logging = logging.StreamHandler(sys.stdout) #Logging the messages to the console
file_logging = logging.FileHandler('log_to_file.log') #Logging the messages to a log file

formatter = logging.Formatter('%(asctime)s - %(message)s - %(levelname)s') #Formatting how the messages would look like
console_logging.setFormatter(formatter) #The format defined above is what we will see in the console
file_logging.setFormatter(formatter) #The format defined above is what we will see in the logs

logger.addHandler(console_logging)
logger.setLevel(logging.INFO) #Setting the log level (custom), so all messages with info and above will be displayed


def user_name():
while True:
name = input("\nEnter your username: ")
for letter in name:
if letter not in 'abcdefghijklmnopqrstuvwxyz':
logger.error('Username has to contain only letters')
name = input('\nTry again: ')
logger.info(f'Username Entered: {name}')
return None

def user_password():

while True:
password = int(input("\nEnter account pin: "))
while password != 1234:
logger.error("Invalid pin.")
password = int(input("\nTry again: "))
logger.info(f'Username Entered: {password}')
return None



user_name()
user_password()

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