original_keras_version = f.attrs[‘keras_version‘].decode(‘utf8‘)

File “/home/liqiang/anaconda3/envs/tensorflow1.8/lib/python3.6/site-packages/keras/engine/saving.py”, line 1004, in load_weights_from_hdf5_group
original_keras_version = f.attrs[‘keras_version’].decode(‘utf8’)
AttributeError: ‘str’ object has no attribute 'decode’

解决办法：
卸载原来的h5py模块，安装2.10版本

pip install h5py==2.10 -i https://pypi.tuna.tsinghua.edu.cn/simple/