[Solved] Which of the following is the correct syntax to create a prompt template in Langchain? — Ans: prompt = PromptTemplate(template="Hello {name}") | LangChain

LangChain - Prompt Templates

Which of the following is the correct syntax to create a prompt template in Langchain?

Aprompt = PromptTemplate("Hello {name}")

Bprompt = PromptTemplate(template="Hello {name}")

Cprompt = PromptTemplate.create("Hello {name}")

Dprompt = new PromptTemplate(template="Hello {name}")

Step-by-Step Solution

Solution:

Step 1: Recall PromptTemplate constructor syntax
PromptTemplate requires a named argument 'template' with the string template.
Step 2: Check each option
prompt = PromptTemplate(template="Hello {name}") uses correct named argument syntax. prompt = PromptTemplate("Hello {name}") misses 'template=' keyword. prompt = PromptTemplate.create("Hello {name}") uses non-existent create method. prompt = new PromptTemplate(template="Hello {name}") uses invalid 'new' keyword in Python.
Final Answer:
prompt = PromptTemplate(template="Hello {name}") -> Option B
Quick Check:
PromptTemplate syntax = named template argument [OK]

Quick Trick: Use named argument 'template' when creating PromptTemplate [OK]

Common Mistakes:

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Which of the following is the correct syntax to create a prompt template in Langchain?