How to get the line number where error occurred instead of line number from where error logged in Django

Question

I am using logging in my django project to log errors. However whenever any error occurs at any line, the line number in logs is where the error was logged and not where the error occured.
For example in below code if error occured at 3rd line (code to get data line 1) then in logs line number will be printed as 7 where logging happened.

def get_gender():
    try:
        # code to get data line 1
        # code to get data line 2
        # return data dictionary
    except Exception as e:
        logging.getLogger("error_logger").error(repr(e))
        return {}

Below is the code of formatted in logging settings file.

formatters':{
        'large':{
            'format':'%(asctime)s  %(levelname)s  %(process)d  %(pathname)s  '+
            '%(funcName)s  %(lineno)d  %(message)s  '
        },

Error message example:

2017-05-06 15:20:07,065  ERROR  7000  /home/USER/ASonline/common/services/category_services.py  get_gender  7  IndexError('list index out of range',)

How can I get the line number where error occurred instead of line number from where error logged.

score 1 · Accepted Answer · edited May 23 '17 at 12:10

1

Finding the line number in python takes a bit of work. If you are really interested in adding the line number you can do this:

from inspect import currentframe

logging.getLogger("error_logger").error("{0}: {1}".format(currentfram().lineno , repr(e)))

But it doesn't really add anything important. What you really need when something goes wrong is a stacktrace. And that's best achieved with

import traceback


try:
    # code to get data line 1
    # code to get data line 2
    # return data dictionary
except Exception as e:
    logging.getLogger("error_logger").error(traceback.format_exc())
    return {}

edited May 23 '17 at 12:10

Community

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answered May 07 '17 at 15:11

e4c5

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It is a little simpler to just use `logging.getLogger(__name__).exception('my error message')`. You don't even need to pass in the exception variable. It grabs it from `sys.exc_info()` if you are in an `except` block. – egrubbs Nov 12 '21 at 17:48

How to get the line number where error occurred instead of line number from where error logged in Django

1 Answers1