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| import time | |
| import gradio as gr | |
| import openai | |
| import os | |
| import requests | |
| import json | |
| # 從環境變數中讀取 OpenAI API 金鑰 | |
| api_key = os.getenv('OPENAI_API_KEY') | |
| if not api_key: | |
| raise ValueError("請設置 'OPENAI_API_KEY' 環境變數") | |
| # OpenAI API key | |
| openai_api_key = api_key | |
| # 將 Gradio 的歷史紀錄轉換為 OpenAI 格式 | |
| def transform_history(history): | |
| new_history = [] | |
| for chat in history: | |
| new_history.append({"role": "user", "content": chat[0]}) | |
| new_history.append({"role": "assistant", "content": chat[1]}) | |
| return new_history | |
| # 回應生成函數,使用 requests 來呼叫 OpenAI API | |
| def response(message, history): | |
| global conversation_history | |
| # 將 Gradio 的歷史紀錄轉換為 OpenAI 的格式 | |
| conversation_history = transform_history(history) | |
| url = "https://api.openai.com/v1/chat/completions" | |
| headers = { | |
| "Content-Type": "application/json", | |
| "Authorization": f"Bearer {openai_api_key}" | |
| } | |
| # 設置初始的 prompt_instruction | |
| prompt_instruction = """ | |
| 你是一名動物園導覽員,只會接觸到動物園遊客。你只能回答有關動物相關的問題,如果不能回答,請禮貌地回應遊客。請以專業、熱情、善解人意且非常有禮貌、親切的口氣,與遊客互動並解答問題: | |
| """ | |
| prompt_to_gpt = prompt_instruction + message | |
| # 新增至 conversation_history | |
| conversation_history.append({"role": "system", "content": prompt_to_gpt}) | |
| # 設置請求的數據 | |
| data = { | |
| "model": "gpt-3.5-turbo", # 使用的模型是 gpt-4 或 gpt-3.5-turbo | |
| "messages": conversation_history, | |
| "max_tokens": 200 # 控制生成的最大令牌數 | |
| } | |
| # 發送請求到 OpenAI API | |
| response = requests.post(url, headers=headers, data=json.dumps(data)) | |
| # 處理回應 | |
| response_json = response.json() | |
| # 提取模型的回應並加入歷史紀錄 | |
| if 'choices' in response_json and len(response_json['choices']) > 0: | |
| model_response = response_json['choices'][0]['message']['content'] | |
| conversation_history.append({"role": "assistant", "content": model_response}) | |
| # 逐字回傳生成的文字,實現打字機效果 | |
| for i in range(len(model_response)): | |
| time.sleep(0.05) # 每個字符間隔 0.05 秒 | |
| yield model_response[: i+1] | |
| else: | |
| yield "喔~Sorry~,我可能需再了解相關資訊才能回覆您的問題。" | |
| # 建立 Gradio 聊天界面 | |
| gr.ChatInterface(response, | |
| title='動物園導覽員', | |
| textbox=gr.Textbox(placeholder="請輸入您的問題")).launch(share=True) |