[Solved] Identify the error in this custom loader code:from langchain.document_loaders.base import BaseLoader class FaultyLoader(BaseLoader): def load(self): docs = [] docs.... | LangChain

LangChain - Document Loading

Identify the error in this custom loader code:

from langchain.document_loaders.base import BaseLoader

class FaultyLoader(BaseLoader):
    def load(self):
        docs = []
        docs.append('Just a string')
        return docs

loader = FaultyLoader()
loader.load()

AThe load method must be named read

BBaseLoader cannot be inherited directly

CThe class must not have a load method

DThe load method should return Document objects, not strings

Step-by-Step Solution

Solution:

Step 1: Check what load returns
The load method returns a list with a string instead of Document objects.
Step 2: Recall Langchain expects Document objects
Custom loaders must return Document instances, not plain strings, for proper processing.
Final Answer:
The load method should return Document objects, not strings -> Option D
Quick Check:
load() must return Document objects [OK]

Quick Trick: load() must return Document objects, not plain strings [OK]

Common Mistakes:

Returning strings instead of Document objects
Misnaming the load method
Thinking BaseLoader can't be inherited

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Identify the error in this custom loader code:

Step 1: Check what load returns

Step 2: Recall Langchain expects Document objects

Final Answer:

Quick Check:

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