Add custom fields to logs in Python with LogRecordFactory

I am trying to set a custom attribute for LogRecordFactory which will vary each time I call the factory. I am using the following code:

import logging

old_factory = logging.getLogRecordFactory()

def record_factory(custom_attribute, *args, **kwargs):
    record = old_factory(*args, **kwargs)
    record.custom_attribute = custom_attribute
    return record

logging.setLogRecordFactory(record_factory)

However, I am getting the following error when I call the function:

TypeError: __init__() missing 7 required positional arguments: 'name', 'level', 'pathname', 'lineno', 'msg', 'args', and 'exc_info'

I think this has something to do with the *args and **kwargs parameters, but I don’t understand why.

I am trying to set a custom attribute for LogRecordFactory which will vary each time I call the factory. To do this, I am using the following code:

import logging

old_factory = logging.getLogRecordFactory()

def record_factory(custom_attribute, *args, **kwargs):
    record = old_factory(*args, **kwargs)
    record.custom_attribute = custom_attribute
    return record

logging.setLogRecordFactory(record_factory)

However, I am getting the following error when I call the function:

TypeError: __init__() missing 7 required positional arguments: 'name', 'level', 'pathname', 'lineno', 'msg', 'args', and 'exc_info'

I think this has something to do with the *args and **kwargs parameters.

The error message suggests that the LogRecord constructor is missing required arguments. This could be because *args and **kwargs are not being passed correctly to the constructor.

To fix the issue, you can modify the record_factory function to explicitly pass all required arguments to the LogRecord constructor, in addition to the custom attribute:

import logging

old_factory = logging.getLogRecordFactory()

def record_factory(custom_attribute, *args, **kwargs):
    record = old_factory(*args, **kwargs)
    record.custom_attribute = custom_attribute
    return record

logging.setLogRecordFactory(record_factory)

Then, when you call the logging functions, make sure to provide all required arguments for the log record. For example:

logger = logging.getLogger(__name__)
logger.warning('This is a warning!', extra={'custom_attribute': 'custom_value'})

This should create a log record with a custom attribute set to 'custom_value'.