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fix loading special_tokens_map_file #31012

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merged 1 commit into from
Jun 6, 2024
Merged

fix loading special_tokens_map_file #31012

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7 changes: 5 additions & 2 deletions src/transformers/tokenization_utils_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2285,11 +2285,14 @@ def _from_pretrained(
# We keep this new value and ignore the one stored in the special_tokens_map_file
continue
if isinstance(value, dict):
value = AddedToken(**value, special=True)
value["special"] = True
value = AddedToken(**value)
elif key == "additional_special_tokens" and isinstance(value, list):
additional_special_tokens = init_kwargs.pop("additional_special_tokens", []) or []
for token in value:
token = AddedToken(**token, special=True) if isinstance(token, dict) else token
if isinstance(token, dict):
token["special"] = True
token = AddedToken(**token)
if token not in additional_special_tokens:
additional_special_tokens.append(token)
value = additional_special_tokens
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