1.windows anaconda3 ,versions of some packages
librosa == 0.6.0
keras == 2.3.1
numba == 0.48.0
2. some porblems and solutions
original_keras_version = f.attrs['keras_version'].decode('utf8')
AttributeError: 'str' object has no attribute 'decode'
audio_open
raise NoBackendError()
audioread.exceptions.NoBackendError