109 lines
3.0 KiB
Plaintext
109 lines
3.0 KiB
Plaintext
{
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"cells": [
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{
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"metadata": {},
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"cell_type": "raw",
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"source": "1.开始",
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"id": "e69a816f955ad467"
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},
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{
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"metadata": {
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"ExecuteTime": {
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"end_time": "2025-09-30T01:42:53.631350Z",
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"start_time": "2025-09-30T01:42:53.622345Z"
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}
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},
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"cell_type": "code",
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"source": [
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"import os\n",
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"from dotenv import load_dotenv # 强制依赖 python-dotenv\n",
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"\n",
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"# 加载 .env 文件中的配置（如果文件不存在或加载失败会报错）\n",
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"load_dotenv(override=True) # override=True 确保覆盖系统中已有的同名环境变量\n",
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"\n",
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"# 从 .env 文件中读取配置，若不存在则直接抛出异常\n",
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"required_vars = [\n",
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" \"LANGSMITH_TRACING\",\n",
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" \"LANGSMITH_API_KEY\",\n",
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" \"LANGSMITH_PROJECT\"\n",
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"]\n",
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"\n",
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"# 检查必要的配置项是否存在\n",
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"missing_vars = [var for var in required_vars if var not in os.environ]\n",
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"if missing_vars:\n",
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" raise ValueError(\n",
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" f\".env 文件中缺少必要的配置项：{', '.join(missing_vars)}\\n\"\n",
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" \"请确保 .env 文件中包含以下配置：\\n\"\n",
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" \"LANGSMITH_TRACING=true\\n\"\n",
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" \"LANGSMITH_API_KEY=你的API密钥\\n\"\n",
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" \"LANGSMITH_PROJECT=你的项目名（默认可填default）\"\n",
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" )\n",
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"print(\"配置检查通过\")\n",
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"# 输出\n",
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"print(f\"LANGSMITH_TRACING: {os.environ['LANGSMITH_TRACING']}\")\n",
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"\n",
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"# 验证 LANGSMITH_TRACING 必须为 true（保持原逻辑的强制开启）\n",
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"if os.environ[\"LANGSMITH_TRACING\"].lower() != \"true\":\n",
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" raise ValueError(\"LANGSMITH_TRACING 必须设置为 true（区分大小写，建议直接填写true）\")"
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],
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"id": "f55903969ee7b754",
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"配置检查通过\n",
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"LANGSMITH_TRACING: true\n"
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]
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}
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],
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"execution_count": 6
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},
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{
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"metadata": {},
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"cell_type": "markdown",
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"source": "2.三四十",
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"id": "42e3303c7c697d34"
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},
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{
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"metadata": {},
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"cell_type": "code",
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"outputs": [],
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"execution_count": null,
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"source": [
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"import getpass\n",
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"import os\n",
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"\n",
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"if not os.environ.get(\"OPENAI_API_KEY\"):\n",
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" os.environ[\"OPENAI_API_KEY\"] = getpass.getpass(\"Enter API key for OpenAI: \")\n",
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"\n",
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"from langchain.chat_models import init_chat_model\n",
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"\n",
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"model = init_chat_model(\"gpt-4o-mini\", model_provider=\"openai\")"
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],
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"id": "d9c653b7f628c02f"
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 2
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython2",
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"version": "2.7.6"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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