Added a flushHandlers() function to the logger.

adafruit_logging.py

@@ -179,6 +179,9 @@ def emit(self, record: LogRecord) -> None:
 
  raise NotImplementedError()
 
+ def flush(self) -> None:
+ """Placeholder for flush function in subclasses."""
+
 
 # pylint: disable=too-few-public-methods
 class StreamHandler(Handler):
@@ -415,6 +418,13 @@ def getEffectiveLevel(self) -> int:
 
  return self._level
 
+ def flushHandlers(self) -> None:
+ """Flush all handlers. This will ensure that all data is immediately written to the streams.
+ This can be useful if you need to make sure the log is written before a reset.
+ """
+ for handlerName in self._handlers:
+ handlerName.flush()
+
  def addHandler(self, hdlr: Handler) -> None:
  """Adds the handler to this logger.