[Solved] Given the code below, what will be the output of print(results)?... Given the code below, what will be the output of print(results)? | LangChain

LangChain - Evaluation and Testing

Given the code below, what will be the output of print(results)?

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

A['Hello Alice', 'Hi Alice']

B['Hello {name}', 'Hi {name}']

C['Hello', 'Hi']

DError: format method not found

Step-by-Step Solution

Solution:

Step 1: Understand PromptTemplate.format()
The format method replaces placeholders like {name} with values from inputs.
Step 2: Apply inputs to both prompts
Both prompts get 'Alice' for {name}, so outputs are 'Hello Alice' and 'Hi Alice'.
Final Answer:
['Hello Alice', 'Hi Alice'] -> Option A
Quick Check:
format() replaces placeholders correctly [OK]

Quick Trick: format() fills placeholders with input values [OK]

Common Mistakes:

MISTAKES

Thinking format() returns template string unchanged
Expecting placeholders to remain in output
Assuming format() method does not exist

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Given the code below, what will be the output of print(results)?

Step 1: Understand PromptTemplate.format()

Step 2: Apply inputs to both prompts

Final Answer:

Quick Check:

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