cymisyourdad

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TypeError: a bytes-like object is required, not 'NoneType'

sorry, I didn't solve it, I print the value img_buffer and it was null, I guess the problem maybe is that the decode of the dataset is not mapping, and...

img_buffer = self.txn.get(key) in dataset.py ,this line

I print the result of the img_buffer, it shows None