How To Write Logs To A File With Python?
Using Basic Configuration
You can use basic config. If you configure the attribute filename, logs will
be automatically saved to the file you specify. You can also configure the
attribute filemode. Setting the value to w will overwrite the file after
every entry.
import logging
logging.basicConfig(filename="logs.log", filemode="w", format="%(name)s -> %(levelname)s: %(message)s")
logging.warning("warning")
OUTPUT
root -> WARNING: warning
Using Provided Classes
You can also use the provided classes - loggers and handlers:
logger = logging.getLogger(__name__)
FileOutputHandler = logging.FileHandler('logs.log')
logger.addHandler(FileOutputHandler)
logger.warning("Warning.")
You will create a logger and a handler. When creating a handler, assign the
class FileHandler and a file name as an attribute. Then set the handler to a
logger:
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