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GeezerVison is showing github.com — materials/claude-api-python/structured_output_1.py at master · realpython/materials

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import anthropic
import json
client = anthropic.Anthropic()
response = client.messages.create(
model="claude-sonnet-4-6",
max_tokens=1024,
system="You are a Python coding assistant.",
messages=[
{
"role": "user",
"content": "Write a Python function that adds two numbers.",
}
],
output_config={
"format": {
"type": "json_schema",
"schema": {
"type": "object",
"properties": {
"function_name": {"type": "string"},
"code": {"type": "string"},
"explanation": {"type": "string"},
},
"required": ["function_name", "code", "explanation"],
"additionalProperties": False,
},
}
},
)
result = json.loads(response.content[0].text)
print("--- Approach 1: Handwritten JSON schema ---")
print(f"Function: {result['function_name']}")
print(f"\nCode:\n{result['code']}")
print(f"\nExplanation: {result['explanation']}")
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