[Solved] What will happen if you try to format a PartialPromptTemplate without providing all remaining variables?base_prompt = PromptTemplate(template="Hello {name}, welcome to {place}!... | LangChain

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What will happen if you try to format a PartialPromptTemplate without providing all remaining variables?

base_prompt = PromptTemplate(template="Hello {name}, welcome to {place}!")
partial_prompt = base_prompt.partial(place="office")
partial_prompt.format()

AOutput: "Hello , welcome to office!"

BRaise an error because 'name' is missing

COutput: "Hello {name}, welcome to office!"

DOutput: "Hello name, welcome to office!"

Step-by-Step Solution

Solution:

Step 1: Identify remaining variables after partial
Partial fills 'place', so 'name' is still required.
Step 2: Formatting without 'name' causes error
Calling format() without 'name' raises an error because it's missing.
Final Answer:
Raise an error because 'name' is missing -> Option B
Quick Check:
Missing variable causes error on format() [OK]

Quick Trick: All variables must be filled before formatting [OK]

Common Mistakes:

Assuming missing variables become empty strings
Expecting placeholders to remain in output
Thinking format auto-fills missing variables

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What will happen if you try to format a PartialPromptTemplate without providing all remaining variables?

Step 1: Identify remaining variables after partial

Step 2: Formatting without 'name' causes error

Final Answer:

Quick Check:

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