Revert to flushing after file writes.

Author: ilikecake

adafruit_logging.py

@@ -248,6 +248,7 @@ def emit(self, record: LogRecord) -> None:
         :param record: The record (message object) to be logged
         """
         self.stream.write(self.format(record))
+        self.stream.flush()
 
 
 class RotatingFileHandler(FileHandler):
@@ -347,6 +348,7 @@ def emit(self, record: LogRecord) -> None:
         ):
             self.doRollover()
         self.stream.write(self.format(record))
+        self.stream.flush()
 
 
 class NullHandler(Handler):
@@ -418,13 +420,6 @@ 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.