发送您的第一个请求

Claude 模型入门

Nikhil Rangarajan

Data Scientist

什么是 Anthropic 库？

访问 Claude 的官方 Python SDK
帮助组织与 Claude 的交互
使用 pip 安装：
```
pip install anthropic
```
导入库：
```
import anthropic
```

从提示到 Anthropic API，再到 Claude 模型的流程图

认证与初始化

import anthropic


client = anthropic.Anthropic(
  api_key=os.getenv("ANTHROPIC_API_KEY")
)

🔑 课程练习无需提供密钥

发送第一个提示

response = client.messages.create(

    model="claude-sonnet-4-6",

    max_tokens=100,

    messages=[{"role": "user", 
               "content": 
   "What DataCamp course do you recommend to learn Claude?"}]

)

model：Claude Sonnet
max_tokens：限制输出长度（英文约每个 token 4 个字符。）
- Token：模型处理的最小文本单元
messages：从用户输入开始的交互列表

提取模型输出

response —— 完整的结构化 API 响应
response.content —— 返回消息片段列表
```
[{'type': 'text', 
'text': 'Claude is...'}]
```
response.content[0].text —— 助手回复
```
"Claude is..."
```

整合示例

import anthropic


client = anthropic.Anthropic()


response = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=100,
    messages=[{"role": "user", 
               "content": "Summarize the benefits of Claude in one sentence."}]
)


print(response.content[0].text)

整合示例

import anthropic # 导入

client = anthropic.Anthropic() 

response = client.messages.create( 
    model="claude-sonnet-4-6",
    max_tokens=100,
    messages=[{"role": "user", 
               "content": "Summarize the benefits of Claude in one sentence."}]
)

print(response.content[0].text)

整合示例

import anthropic # 导入

client = anthropic.Anthropic() # 初始化

response = client.messages.create( 
    model="claude-sonnet-4-6",
    max_tokens=100,
    messages=[{"role": "user", 
               "content": "Summarize the benefits of Claude in one sentence."}]
)

print(response.content[0].text)

整合示例

import anthropic # 导入

client = anthropic.Anthropic() # 初始化

response = client.messages.create( # 发送请求
    model="claude-sonnet-4-6",
    max_tokens=100,
    messages=[{"role": "user", 
               "content": "Summarize the benefits of Claude in one sentence."}]
)

print(response.content[0].text)

整合示例

import anthropic # 导入

client = anthropic.Anthropic() # 初始化

response = client.messages.create( # 发送请求
    model="claude-sonnet-4-6",
    max_tokens=100,
    messages=[{"role": "user", 
               "content": "Summarize the benefits of Claude in one sentence."}]
)

print(response.content[0].text) # 提取

让我们一起练习吧！

Claude 模型入门