LangChain - Output Parsers
Which of the following is the correct way to create a
PydanticOutputParser for a Pydantic model named Person?Which of the following is the correct way to create a PydanticOutputParser for a Pydantic model named Person?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall PydanticOutputParser initialization
The parser expects the Pydantic model class passed as the 'pydantic_object' argument, not an instance or string.Step 2: Evaluate each option
parser = PydanticOutputParser(pydantic_object=Person) correctly passes the model class with the keyword 'pydantic_object'. Options B, C, and D pass an instance or string, which is incorrect.Final Answer:
parser = PydanticOutputParser(pydantic_object=Person) -> Option CQuick Check:
Use pydantic_object=ModelClass to create parser [OK]
Quick Trick: Pass the model class with 'pydantic_object=' keyword [OK]
Common Mistakes:
- Passing a model instance instead of the class
- Passing model name as a string
- Omitting the 'pydantic_object=' keyword
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