src/exception.py

import sys
from src.logger import logging

def error_message_detail(error,error_detail:sys):
    _,_,exc_tb=error_detail.exc_info()
    if exc_tb is not None:
        file_name=exc_tb.tb_frame.f_code.co_filename
        line_no = exc_tb.tb_lineno
    else:
        # Fallback when exc_info() is called outside an exception handler
        file_name = "Unknown"
        line_no = "Unknown"
    error_message="Error occured in python script name [{0}] line number [{1}] error message[{2}]".format(
     file_name,line_no,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):
        return self.error_message