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[WIP] System Prompt Mapping for Instruct DS #2514

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[WIP] System Prompt Mapping for Instruct DS #2514

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1f7408b
update InputOutputToMessage
jaysonfrancis Mar 18, 2025
dbbef5b
update InputOutputToMessage
jaysonfrancis Mar 19, 2025
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15 changes: 13 additions & 2 deletions torchtune/data/_messages.py
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Original file line number Diff line number Diff line change
Expand Up @@ -254,12 +254,23 @@ def __call__(self, sample: Mapping[str, Any]) -> Mapping[str, Any]:
eot=True,
),
]
if self.new_system_prompt is not None:

system_column = self.column_map.get("system", "system")
system_prompt = None

if (system_column in sample and sample[system_column] and sample[system_column].strip()):
system_prompt = sample[system_column]

elif self.new_system_prompt is not None:
system_prompt = self.new_system_prompt

if system_prompt is not None:
messages = [
Message(
role="system", content=self.new_system_prompt, masked=True, eot=True
role="system", content=system_prompt, masked=True, eot=True
)
] + messages

return {"messages": messages}


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