[Solved] Given the code snippet:from langchain import PromptTemplate template = PromptTemplate(template="Hello {user}", input_variables=["user"]) prompt = template.... | LangChain

LangChain - Prompt Templates

Given the code snippet:

from langchain import PromptTemplate

template = PromptTemplate(template="Hello {user}", input_variables=["user"])
prompt = template.format(user="Alice")
print(prompt)

What will be printed?

AHello {user}

BHello Alice

CHello user

DError: Missing variable

Step-by-Step Solution

Solution:

Step 1: Understand the template and input variables
The template has a placeholder {user} and input_variables list includes "user".
Step 2: Analyze the format method call
The format method replaces {user} with the string "Alice".
Final Answer:
Hello Alice -> Option B
Quick Check:
Placeholder replaced by input = B [OK]

Quick Trick: format() replaces placeholders with given values [OK]

Common Mistakes:

Printing the template string without replacement
Confusing placeholder name with literal text
Expecting an error when variable is provided

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More LangChain Quizzes

Given the code snippet:

Step 1: Understand the template and input variables

Step 2: Analyze the format method call

Final Answer:

Quick Check:

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