import sys


class AnomalyDetectionException(Exception):
    """Custom exception for Anomaly Detection pipeline."""
    
    def __init__(self, error_message, error_details: sys):
        self.error_message = error_message
        _, _, exc_tb = error_details.exc_info()
        
        self.lineno = exc_tb.tb_lineno
        self.file_name = exc_tb.tb_frame.f_code.co_filename
    
    def __str__(self):
        return "Error occurred in python script name [{0}] line number [{1}] error message [{2}]".format(
            self.file_name, self.lineno, str(self.error_message)
        )


if __name__ == '__main__':
    try:
        a = 1 / 0
    except Exception as e:
        raise AnomalyDetectionException(e, sys)