Flush logging message

loghandler.py

@@ -43,11 +43,11 @@ class LOG:
                     line, buf = buf.split('\n', 1)
                     if self.prefix != None:
                         print(self.prefix, end='', file=sys.stderr)
-                    print(line, file=sys.stderr)
+                    print(line, file=sys.stderr, flush=True)
                 if len(buf):
                     if self.prefix != None:
                         print(self.prefix, end='', file=sys.stderr)
-                    print(buf, file=sys.stderr)
+                    print(buf, file=sys.stderr, flush=True)
         
     def ERROR(self, *args):
         self.MESSAGE(*args, level=LOG_ERROR)