You want to create a Langchain prompt that includes a list of tasks dynamically. Which approach correctly injects the list tasks = ['Translate', 'Summarize'] into the prompt template?

hard📝 Application Q8 of 15

LangChain - RAG Chain Construction

You want to create a Langchain prompt that includes a list of tasks dynamically. Which approach correctly injects the list tasks = ['Translate', 'Summarize'] into the prompt template?

Atemplate = "Tasks: {tasks}" prompt = template.format(tasks=tasks[0])

Btemplate = "Tasks: {tasks}" prompt = template.format(tasks=', '.join(tasks))

Ctemplate = "Tasks: {tasks}" prompt = template.format(tasks=str(tasks))

Dtemplate = "Tasks: {tasks}" prompt = template.format(tasks=tasks)

Step-by-Step Solution

Solution:

Step 1: Understand how to format lists in strings
Directly injecting a list shows brackets and quotes, which is not user-friendly.
Step 2: Use join to create a readable string
Joining list elements with ', ' creates a clean string for the prompt.
Final Answer:
template = "Tasks: {tasks}" prompt = template.format(tasks=', '.join(tasks)) -> Option B
Quick Check:
Join list elements for readable injection [OK]

Quick Trick: Join list items into string before injecting [OK]

Common Mistakes:

Injecting list object directly causing ugly output
Using str() which includes brackets and quotes
Injecting only first list item unintentionally

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You want to create a Langchain prompt that includes a list of tasks dynamically. Which approach correctly injects the list tasks = ['Translate', 'Summarize'] into the prompt template?

Step 1: Understand how to format lists in strings

Step 2: Use join to create a readable string

Final Answer:

Quick Check:

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