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fix baichuan template

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hiyouga
2023-08-11 13:45:47 +08:00
parent 3ec4351cfd
commit 9c6dd10514
2 changed files with 12 additions and 7 deletions
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4
src/llmtuner/dsets/preprocess.py
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@@ -1,3 +1,4 @@
import tiktoken
from typing import TYPE_CHECKING, Any, Dict, Generator, List, Literal
from itertools import chain
@@ -31,10 +32,11 @@ def preprocess_dataset(
def preprocess_pretrain_dataset(examples: Dict[str, List[Any]]) -> Dict[str, Any]:
# build grouped texts with format `X1 X2 X3 ...` (without <eos>)
if hasattr(tokenizer, "tokenizer"): # for tiktoken tokenizer (Qwen)
if isinstance(getattr(tokenizer, "tokenizer"), tiktoken.Encoding): # for tiktoken tokenizer (Qwen)
kwargs = dict(allowed_special="all")
else:
kwargs = dict(add_special_tokens=False)
tokenized_examples = tokenizer(examples["prompt"], **kwargs)
concatenated_examples = {k: list(chain(*tokenized_examples[k])) for k in tokenized_examples.keys()}
total_length = len(concatenated_examples[list(concatenated_examples.keys())[0]])