src/exception.py

import sys
from src.logger import logging

def error_message_detail(error, error_detail:sys):
    _,_,exc_tb = error_detail.exc_info()
    filename = exc_tb.tb_frame.f_code.co_filename
    error_message = "Error occured in script name [{0}] line number [{1}] error message [{2}]" \
    .format(filename,exc_tb.tb_lineno,str(error))

    return error_message


class CustomException(Exception):
    def __init__(self, error_message, error_detail:sys):
        super().__init__(error_message)
        self.error_message = error_message_detail(error_message, error_detail=error_detail)

    def __str__(self) -> str:
        return self.error_message
    
if __name__=="__main__":
    try:
        a=1/0
    except Exception as e:
        logging.info("divide by zero")
        raise CustomException(e,sys)