Preview Your Chunks

Print the chunk count and inspect the first chunk

💻

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Inspecting your output

Before moving to embeddings, verify that chunking works. A quick preview function prints two things:

The total number of chunks
The text of the first chunk

This is a debugging habit worth keeping throughout the pipeline.

Instructions

Complete the preview_chunks function. The starter code provides the signature.

Print f"Total chunks: {len(chunks)}".
Print f"First chunk:\n{chunks[0]}".

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import pypdf

def extract_text(pdf_path):
    reader = pypdf.PdfReader(pdf_path)
    pages = [page.extract_text() for page in reader.pages]
    return "\n".join(pages)

def chunk_text(text, chunk_size=500, overlap=100):
    chunks = []
    for i in range(0, len(text), chunk_size - overlap):
        chunks.append(text[i : i + chunk_size])
    return chunks

def preview_chunks(chunks):
    # Step 1: Print total chunk count
    # Step 2: Print first chunk

Preview Your Chunks

Inspecting your output

Instructions

Interactive Code Editor