Is there a way to disable message formatting ?

Hi Delgan !

I was wondering if there was a way to disable the message formatting with the args/kwargs ?

from loguru import logger

kwargs = {"a": 1, "b": 2}
logger.info(f"Is this going to be alright ? {kwargs}", additional_infos=kwargs)

Traceback:

Traceback (most recent call last):
  File "/tmp/test.py", line 4, in <module>
    logger.info(f"Is this going to be alright ? {kwargs}", additional_infos=kwargs)
  File "/Users/gjeusel/miniconda3/envs/greenpandas/lib/python3.6/site-packages/loguru/_logger.py", line 1971, in info
    __self._log("INFO", None, False, __self._options, __message, args, kwargs)
  File "/Users/gjeusel/miniconda3/envs/greenpandas/lib/python3.6/site-packages/loguru/_logger.py", line 1948, in _log
    log_record["message"] = message.format(*args, **kwargs)
KeyError: "'a'"

Is it a feature you would be inclined in adding ? Maybe parametrized by an environment variable or via logger.configure ?

Cordially !

[Delgan]

I may have some ideas to allow more freedom in configuring the message formatting. I think this feature might be of interest to some people, in your case and others. But I’m not sure of anything, we’ll see. I’ll keep this issue open in the meantime. 👍

[Delgan]

@mastern2k3 You can use f-strings as long as you do not call the logging method with formatting arguments:

logger.info(f"User data: {user_data}")                      # Good.
logger.info(f"User data: {user_data}", data=user_data)      # Bad.
logger.bind(data=user_data).info(f"User data: {user_data})  # Good.

I got your point, though. I plan to remove automatic formatting in favor of f-strings.