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> File "/Users/hanxirui/workspace/python/invoice-master/venv/lib/python3.6/site-packages/tensorflow/python/keras/engine/saving.py", line 758, in load_weights_from_hdf5_group original_keras_version = f.attrs['keras_version'].decode('utf8') AttributeError: 'str' object has no attribute 'decode' 请问你解决了吗？我也是这个问题