logging.FileHandler()
logging.FileHandler() is a Python function in the Logging Module category. Creates a handler that writes log messages to a file. The syntax is logging.FileHandler(filename, mode="a", encoding=None, delay=False, errors=None). Parameters: filename — log file path. Returns: FileHandler object. A typical example: handler = logging.FileHandler("app.log")
logger.addHandler(handler). A close sibling is logging.basicConfig(), which configures the root logger with a basic configuration. A close sibling is logging.getLogger(), which returns a logger with the specified name or the root logger if name is None. A close sibling is logger.debug(), which logs a message with severity DEBUG (detailed diagnostic info). A close sibling is logger.info(), which logs a message with severity INFO (general operational messages). More about this category: Logging facility — basicConfig, getLogger, FileHandler, Formatter. For a broader walkthrough, read the Logging Module guide. Related Logging Module entries: logging.basicConfig(), logging.getLogger(), logger.debug(), logger.info(), logger.warning(), logger.error().