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Upload chat.py with huggingface_hub

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  1. chat.py +25 -0
chat.py ADDED
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+ """Qwen2.5-3B Coffee Barista — 对话示例"""
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+ from transformers import AutoModelForCausalLM, AutoTokenizer
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+ from peft import PeftModel
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+
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+ MODEL = "Qwen/Qwen2.5-3B-Instruct"
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+ LORA = "ynanxiu/qwen25-3b-coffee-lora-v21"
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+
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+ tokenizer = AutoTokenizer.from_pretrained(MODEL)
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+ model = AutoModelForCausalLM.from_pretrained(MODEL, device_map="auto")
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+ model = PeftModel.from_pretrained(model, LORA)
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+
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+ SYSTEM = "你是深耕精品咖啡行业8年的独立咖啡馆金牌咖啡师。"
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+
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+ while True:
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+ q = input("\n> ").strip()
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+ if not q:
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+ break
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+ msgs = [
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+ {"role": "system", "content": SYSTEM},
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+ {"role": "user", "content": q},
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+ ]
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+ text = tokenizer.apply_chat_template(msgs, tokenize=False, add_generation_prompt=True)
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+ inputs = tokenizer(text, return_tensors="pt").to(model.device)
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+ outs = model.generate(**inputs, max_new_tokens=300, do_sample=True, temperature=0.7)
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+ print(tokenizer.decode(outs[0][len(inputs.input_ids[0]):], skip_special_tokens=True))