fix minor bug in main.py

main.py

@@ -162,7 +162,7 @@ def main():
         ndata = train_dataset.__len__()
         lemniscate = LinearAverage(args.low_dim, ndata, args.temperature, args.memory_momentum).cuda()
 
-    
+
     criterion = NCACrossEntropy(torch.LongTensor([y for (p, y) in train_loader.dataset.imgs]),
             args.margin / args.temperature).cuda()
     cudnn.benchmark = True
@@ -238,9 +238,9 @@ def train(train_loader, model, lemniscate, criterion, optimizer, epoch):
             print('Epoch: [{0}][{1}/{2}]\t'
                   'Time {batch_time.val:.3f} ({batch_time.avg:.3f})\t'
                   'Data {data_time.val:.3f} ({data_time.avg:.3f})\t'
-                  'Loss {loss.val:.4f} ({loss.avg:.4f})\t').format(
+                  'Loss {loss.val:.4f} ({loss.avg:.4f})\t'.format(
                    epoch, i, len(train_loader), batch_time=batch_time,
-                   data_time=data_time, loss=losses)
+                   data_time=data_time, loss=losses))
 
 
 def save_checkpoint(state, is_best, filename='checkpoint.pth.tar'):