script/format_trans/chatml_p2r.py

import json
import os

input_file = "/root/test/weitiao/data_process_bq/data/train01_chatml_closed_length2048turns20.json"
output_file = "/root/test/weitiao/data_process_bq/data/train01_p2r_closed_length2048turns20.json"

with open(input_file, 'r', encoding='utf-8') as f:
    data = json.load(f)

processed_data = []

for item in data:
    history = item.get('messages', [])
    old_chosen = item.get('chosen', [])
    old_rejected = item.get('rejected', [])
    
    new_chosen = history + old_chosen
    new_rejected = history + old_rejected
    
    new_item = {
        "chosen": new_chosen,
        "rejected": new_rejected
    }
    processed_data.append(new_item)

with open(output_file, 'w', encoding='utf-8') as f:
    json.dump(processed_data, f, ensure_ascii=False, indent=2)

print(f"done, {len(processed_data)} items")