CODEWITHSUNDEEP
python-3.xlogging
lion_bash
lion_bash

Reputation: 1409

Custom formats set in logging.basicConfig for StreamHandler

I have two log handlers set up in my basic config. The FileHandler logs to a file and StreamHandler logs to stdout. 

logging.basicConfig(
    format="%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s]  %(message)s",
    level=logging.INFO,
    handlers=[
        logging.FileHandler("/my/log/file.log"),
        logging.StreamHandler(sys.stdout)
    ]
)

Currently, the above code works fine, however, I want my StreamHandler to output a different format, just the %(message).

Is there a way to specify this in my logging.basicConfig?

Upvotes: 4

Views: 3490

Answers (1)

Moses Koledoye
Moses Koledoye

Reputation: 78536

Predefine the StreamHandler and set your desired custom format before passing it to basicConfig:

handler_sh = logging.StreamHandler(sys.stdout)
handler_sh.setFormatter(logging.Formatter("%(message)s"))

You can now pass the created handler with an already set formatter to basicConfig:

logging.basicConfig(
    format="%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s]  %(message)s",
    level=logging.INFO,
    handlers=[
        logging.FileHandler("/my/log/file.log"),
        handler_sh
    ]
)

Only the FileHandler takes the format passed in basicConfig:

Any handlers which don’t already have a formatter set will be assigned the default formatter created in this function.

Upvotes: 6

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