[Solved] Identify the error in this A/B testing code snippet: from langchain import PromptTemplate prompt1 = PromptTemplate(template='Hello {name}') prompt2 = PromptTemplate(template='Hi {name}') inputs =... | LangChain

LangChain - Evaluation and Testing

Identify the error in this A/B testing code snippet:

from langchain import PromptTemplate
prompt1 = PromptTemplate(template='Hello {name}')
prompt2 = PromptTemplate(template='Hi {name}')
inputs = {'name': 'Bob'}
results = [prompt1.format(inputs), prompt2.format(inputs)]
print(results)

APromptTemplate missing template argument

BUsing format() without unpacking inputs dictionary

Cinputs dictionary missing required key

Dprint statement syntax error

Step-by-Step Solution

Solution:

Step 1: Check how format() is called
format() expects keyword arguments, so inputs must be unpacked with **inputs.
Step 2: Identify the error
Code passes inputs as a single dict argument, causing a TypeError.
Final Answer:
Using format() without unpacking inputs dictionary -> Option B
Quick Check:
Use **inputs to unpack dict for format() [OK]

Quick Trick: Always unpack dict with ** when calling format() [OK]

Common Mistakes:

MISTAKES

Passing dict directly instead of unpacking
Forgetting to import PromptTemplate
Using wrong print syntax

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Identify the error in this A/B testing code snippet:

Step 1: Check how format() is called

Step 2: Identify the error

Final Answer:

Quick Check:

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