LoggerAdapter

class (source)

An adapter for loggers which makes it easier to specify contextual
information in logging output.

Changed in 3.2, 3.6, 3.10, 3.13

3.2: The isEnabledFor(), getEffectiveLevel(), setLevel() and hasHandlers() methods were added to LoggerAdapter. These methods delegate to the underlying logger.
3.6: Attribute manager and method _log() were added, which delegate to the underlying logger and allow adapters to be nested.
3.10: The extra argument is now optional.
3.13: The merge_extra parameter was added.

_log: Low-level log implementation, proxied to allow nested logger adapters.

process: Process the logging message and keyword arguments passed in to a logging call to insert contextual information.