Run2 file text extraction
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Robustly extracts text from PDF, DOCX, and PPTX files in Python using PyPDF2, python-docx, and python-pptx, suitable for document classification workflows.
SKILL.md
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Robust File Text Extraction Skill
Description
When classifying a large number of documents (PDFs, PPTXs, DOCXs), extracting a sample of text (e.g., the first few pages) is sufficient and highly performant. This skill handles text extraction robustly, catching errors to avoid failing the entire batch.
Prerequisites
Install required Python packages:
pip install PyPDF2 python-docx python-pptx
Python Implementation
import os
from PyPDF2 import PdfReader
import docx
from pptx import Presentation
def extract_text_for_classification(file_path, pdf_pages=3):
"""
Extracts text from a file based on its extension.
Returns lowercase text to simplify keyword matching.
"""
ext = file_path.lower().split('.')[-1]
text = ""
try:
if ext == "pdf":
reader = PdfReader(file_path)
for i in range(min(pdf_pages, len(reader.pages))):
page_text = reader.pages[i].extract_text()
if page_text:
text += page_text + " "
elif ext == "docx":
doc = docx.Document(file_path)
for para in doc.paragraphs:
text += para.text + " "
elif ext == "pptx":
prs = Presentation(file_path)
for slide in prs.slides:
for shape in slide.shapes:
if hasattr(shape, "text"):
text += shape.text + " "
else:
print(f"Warning: Unsupported file type '{ext}' for file {file_path}")
except Exception as e:
print(f"Error reading {file_path}: {e}")
return text.lower()