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Update PreTrainedTokenizerBase to check/handle batch length for text_pair parameter #11486

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Merged
sgugger merged 5 commits into from
Apr 28, 2021
Merged

Update PreTrainedTokenizerBase to check/handle batch length for text_pair parameter #11486

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47dd60f
Update tokenization_utils_base.py
Apr 28, 2021
056b01a
add assertion
hamelsmu Apr 28, 2021
6df922b
check batch len
hamelsmu Apr 28, 2021
0bc5177
Update src/transformers/tokenization_utils_base.py
Apr 28, 2021
878238b
add error message
hamelsmu Apr 28, 2021
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8 changes: 8 additions & 0 deletions src/transformers/tokenization_utils_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2279,6 +2279,14 @@ def __call__(
)

if is_batched:
if isinstance(text_pair, str):
raise TypeError(
"when tokenizing batches of text, `text_pair` must be a list or tuple with the same length as `text`."
)
if text_pair is not None and len(text) != len(text_pair):
raise ValueError(
f"batch length of `text`: {len(text)} does not match batch length of `text_pair`: {len(text_pair)}."
)
batch_text_or_text_pairs = list(zip(text, text_pair)) if text_pair is not None else text
return self.batch_encode_plus(
batch_text_or_text_pairs=batch_text_or_text_pairs,
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