TypeError: object of type 'IndexFlatIP' has no len()

[Maydaytyh]

Hi, I trained roberta-large with my own data by using run_sup_example.sh. But when I build index for senteced and use model.search, I encountered the error. The building process has no problem, the error is in model.search.

/site-packages/simcse/tool.py", line 64, in encode
    total_batch = len(sentence) // batch_size + (1 if len(sentence) % batch_size > 0 else 0)
TypeError: object of type 'IndexFlatIP' has no len()

[Maydaytyh]

I modify the default value of use_faiss to True, then it works. Maybe something wrong

[Tianyu Gao]

Hi Maydaytyh,

Thanks for spotting our the problem! I'll look into it

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