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You wrote:

medium📝 Debug Q6 of 15
LangChain - Embeddings and Vector Stores
You wrote:
embeddings = OpenAIEmbeddings()
vector = embeddings.embed_query()

What is the error in this code?
AOpenAIEmbeddings cannot be instantiated without model_name
Bembed_query requires a text string argument
Cembed_query returns None by default
DNo error, code runs fine
Step-by-Step Solution
Solution:

  1. Step 1: Check embed_query method signature

    embed_query requires a text string argument to embed.

  2. Step 2: Identify missing argument error

    Calling embed_query without argument causes a TypeError.

  3. Final Answer:

    embed_query requires a text string argument -> Option B

  4. Quick Check:

    embed_query needs text input [OK]
Quick Trick: embed_query must have a text argument [OK]
Common Mistakes:
  • Assuming embed_query can be called empty
  • Thinking model_name is always required
  • Believing embed_query returns None if no input

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