基于大语言模型的浏览器自动化：playwright+browser-use

 

 

1、安装nodejs

https://nodejs.org/zh-cn/download 下载 node-v24.11.0-x64.msi

2、安装 playwright

npx playwright install

 

 

3、安装 browser-use 包

首先需要安装了python环境，然后创建 python 虚拟环境

 创建 python 虚拟环境，也可以使用

conda create --name browser_use python=3.11
conda activate browser_use

安装 browser-use 包

pip install browser-use -i https://pypi.tuna.tsinghua.edu.cn/simple

 

4、根据使用的大模型服务，在环境变量设置里配置相应的 API key

OPENAI_API_KEY（gpt-4o 模型）
ANTHROPIC_API_KEY（claude 模型）
GEMINI_API_KEY（gemini 模型）
DEEPSEEK_API_KEY（deepseek 的 r1、v3 模型）

 

5、示例1：浏览器搜索，回答用户问题

需要用到的依赖模块

langchain-openai：提供ChatOpenAI类，用于与OpenAI的聊天模型进行交互
browser-use：包含Agent类，实现智能浏览器自动化功能
asyncio：Python标准库，用于异步编程，无需额外安装
os：Python标准库，提供操作系统接口，无需额外安装
pydantic：提供SecretStr等数据验证功能，用于安全处理敏感信息

安装依赖

pip install langchain-openai pydantic -i https://pypi.tuna.tsinghua.edu.cn/simple

 

 

安装browser-use环境

参考：https://github.com/browser-use/browser-use?tab=readme-ov-file

1. Create environment with uv (Python>=3.11):

uv init

2. Install Browser-Use package:

#  We ship every day - use the latest version!
uv add browser-use
uv sync

执行结果：

PS C:\Users\EDY> uv init
Initialized project `edy`
PS C:\Users\EDY> uv sync
>> uv add browser-use
>> #  We ship every day - use the latest version!
Using CPython 3.13.2 interpreter at: Desktop\work\installtools\python-3.13.2-amd64\python.exe
Creating virtual environment at: .venv
Resolved 1 package in 3ms
Audited in 0.02ms
Resolved 261 packages in 3.31s
Prepared 97 packages in 10.93s
Installed 97 packages in 433ms+ aiofiles==25.1.0+ aiohappyeyeballs==2.6.1+ aiohttp==3.12.15+ aiosignal==1.4.0+ annotated-types==0.7.0+ anthropic==0.72.0+ anyio==4.11.0+ attrs==25.4.0+ authlib==1.6.5+ backoff==2.2.1+ beautifulsoup4==4.14.2+ browser-use==0.9.4+ bubus==1.5.6+ cachetools==6.2.1+ cdp-use==1.4.3+ certifi==2025.10.5+ cffi==2.0.0+ charset-normalizer==3.4.4+ click==8.3.0+ colorama==0.4.6+ cryptography==46.0.3+ distro==1.9.0+ docstring-parser==0.17.0+ frozenlist==1.8.0+ google-api-core==2.28.1+ google-api-python-client==2.185.0+ google-auth==2.42.0+ google-auth-httplib2==0.2.0+ google-auth-oauthlib==1.2.2+ google-genai==1.46.0+ googleapis-common-protos==1.71.0+ groq==0.33.0+ h11==0.16.0+ httpcore==1.0.9+ httplib2==0.31.0+ httpx==0.28.1+ httpx-sse==0.4.3+ idna==3.11+ inquirerpy==0.3.4+ jiter==0.11.1+ jsonschema==4.25.1+ jsonschema-specifications==2025.9.1+ markdown-it-py==4.0.0+ markdownify==1.2.0+ mcp==1.19.0+ mdurl==0.1.2+ multidict==6.7.0+ oauthlib==3.3.1+ ollama==0.6.0+ openai==1.109.1+ pfzy==0.3.4+ pillow==12.0.0+ portalocker==2.10.1+ posthog==6.7.11+ prompt-toolkit==3.0.52+ propcache==0.4.1+ proto-plus==1.26.1+ protobuf==6.33.0+ psutil==7.1.2+ pyasn1==0.6.1+ pyasn1-modules==0.4.2+ pycparser==2.23+ pydantic==2.12.3+ pydantic-core==2.41.4+ pydantic-settings==2.11.0+ pygments==2.19.2+ pyotp==2.9.0+ pyparsing==3.2.5+ pypdf==6.1.3+ python-dateutil==2.9.0.post0+ python-dotenv==1.2.1+ python-multipart==0.0.20+ pywin32==311+ referencing==0.37.0+ reportlab==4.4.4+ requests==2.32.5+ requests-oauthlib==2.0.0+ rich==14.2.0+ rpds-py==0.28.0+ rsa==4.9.1+ screeninfo==0.8.1+ six==1.17.0+ sniffio==1.3.1+ soupsieve==2.8+ sse-starlette==3.0.2+ starlette==0.49.1+ tenacity==9.1.2+ tqdm==4.67.1+ typing-extensions==4.15.0+ typing-inspection==0.4.2+ uritemplate==4.2.0+ urllib3==2.5.0+ uuid7==0.1.0+ uvicorn==0.38.0+ wcwidth==0.2.14+ websockets==15.0.1+ yarl==1.22.0
PS C:\Users\EDY>

3. Get your API key from Browser Use Cloud and add it to your .env file (new signups get $10 free credits):

# .env
BROWSER_USE_API_KEY=your-key

4. Install Chromium browser:

uvx browser-use install

执行结果：

 5. Run your first agent:

from browser_use import Agent, Browser, ChatBrowserUse
import asyncioasync def example():browser = Browser(# use_cloud=True,  # Uncomment to use a stealth browser on Browser Use Cloud
    )llm = ChatBrowserUse()agent = Agent(task="Find the number of stars of the browser-use repo",llm=llm,browser=browser,)history = await agent.run()return historyif __name__ == "__main__":history = asyncio.run(example())