You want to create a prompt that always asks about the weather but lets the user specify the city later. How do you use PartialPromptTemplate to achieve this?

hard📝 Application Q8 of 15

LangChain - Prompt Templates

You want to create a prompt that always asks about the weather but lets the user specify the city later. How do you use PartialPromptTemplate to achieve this?

AUse partial to fill city="weather" and leave topic variable

BCreate a prompt with only {city} variable and fill it directly

CCreate two separate prompts and combine them manually

DCreate a base prompt with variables {topic} and {city}, then partial fill topic="weather"

Step-by-Step Solution

Solution:

Step 1: Define base prompt with both variables
Start with a prompt template having {topic} and {city} variables.
Step 2: Use partial to fix topic="weather"
Partial fill the topic variable to "weather", leaving city variable open.
Final Answer:
Create a base prompt with variables {topic} and {city}, then partial fill topic="weather" -> Option D
Quick Check:
Partial fixes topic, city remains variable [OK]

Quick Trick: Partial fill fixed parts, leave others variable [OK]

Common Mistakes:

Filling wrong variable with partial
Not defining all needed variables in base prompt
Trying to combine prompts manually unnecessarily

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You want to create a prompt that always asks about the weather but lets the user specify the city later. How do you use PartialPromptTemplate to achieve this?

Step 1: Define base prompt with both variables

Step 2: Use partial to fix topic="weather"

Final Answer:

Quick Check:

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