File "work/train.py", line 53, in for batch_id, data in enumerate(train_reader()): File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/batch.py", line 58, in batch_reader for instance in r: File "/home/aistudio/work/reader.py", line 147, in reader img_path, label = line.split() ValueError: too many values to unpack (expected 2)...