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What will be the output of this Langchain code snippet?

medium📝 Predict Output Q5 of 15
LangChain - Document Loading
What will be the output of this Langchain code snippet? 
from langchain.document_loaders import PDFLoader
loader = PDFLoader('doc.pdf')
docs = loader.load()
print(type(docs))
A<class 'list'>
B<class 'dict'>
C<class 'str'>
D<class 'int'>
Step-by-Step Solution
Solution:

  1. Step 1: Identify the return type of PDFLoader.load()

    PDFLoader.load() returns a list of Document objects representing pages or chunks.

  2. Step 2: Confirm the printed type

    Printing type of docs will show <class 'list'> because docs is a list.

  3. Final Answer:

    <class 'list'> -> Option A

  4. Quick Check:

    PDFLoader.load() returns list [OK]
Quick Trick: Loaders return lists of documents, not single strings [OK]
Common Mistakes:
  • Expecting a dict or string instead of list
  • Confusing document content with container type
  • Assuming integer output from load()

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