Merge pull request apache#1066 from qiaohaijun/patch-11

fix TabError: inconsistent use of tabs and spaces in indentation pyth…

example/image-classification/train_model.py

@@ -12,18 +12,18 @@ def fit(args, network, data_loader):
     if 'log_file' in args and args.log_file is not None:
         log_file = args.log_file
         log_dir = args.log_dir
-        log_file_full_name = os.path.join(args.log_dir,log_file)
-        if not os.path.exists(args.log_dir): 
+        log_file_full_name = os.path.join(log_dir, log_file)
+        if not os.path.exists(log_dir): 
             os.mkdir(log_dir)
         logger = logging.getLogger()
-	handler = logging.FileHandler(log_file_full_name)
-	formatter = logging.Formatter(head)
-	handler.setFormatter(formatter)
+        handler = logging.FileHandler(log_file_full_name)
+        formatter = logging.Formatter(head)
+        handler.setFormatter(formatter)
         logger.addHandler(handler)
         logger.setLevel(logging.DEBUG)
         logger.info('start with arguments %s', args)
     else:
-    	logging.basicConfig(level=logging.DEBUG, format=head)
+        logging.basicConfig(level=logging.DEBUG, format=head)
         logging.info('start with arguments %s', args)
 
     # load model?