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#app.py | |
import time | |
import gradio as gr | |
import google.generativeai as genai | |
import os | |
# 從 Hugging Face secrets 中讀取 API 金鑰(如果需要) | |
api_key = os.getenv('GOOGLE_API_KEY') | |
if not api_key: | |
raise ValueError("請設置 'GOOGLE_API_KEY' 環境變數") | |
# 設定 API 金鑰 | |
genai.configure(api_key=api_key) | |
# 初始化模型 | |
try: | |
model = genai.GenerativeModel('gemini-1.5-pro') | |
chat = model.start_chat(history=[]) | |
print("模型載入成功。") | |
except Exception as e: | |
raise ValueError(f"無法載入模型:{e}") | |
# 將 Gradio 的歷史紀錄轉換為 Gemini 格式 | |
def transform_history(history): | |
new_history = [] | |
for chat in history: | |
new_history.append({"parts": [{"text": chat[0]}], "role": "user"}) | |
new_history.append({"parts": [{"text": chat[1]}], "role": "model"}) | |
return new_history | |
# 回應生成函數 | |
def response(message, history): | |
global chat | |
# 將 Gradio 的歷史紀錄轉換為 Gemini 的格式 | |
chat.history = transform_history(history) | |
# 發送訊息到 Gemini API | |
response = chat.send_message(message) | |
response.resolve() | |
# 逐字回傳生成的文字,實現打字機效果 | |
for i in range(len(response.text)): | |
time.sleep(0.05) # 每個字符間隔 0.05 秒 | |
yield response.text[: i+1] | |
# 建立 Gradio 聊天界面 | |
gr.ChatInterface(response, | |
title='Gemini Chat', | |
textbox=gr.Textbox(placeholder="Question to Gemini")).launch(share=True) | |