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Project Gutenberg Downloader - Example Usage
This script demonstrates how to use the GutenbergDownloader to download
and process free e-books from Project Gutenberg.
Project Gutenberg URLs:
- https://www.gutenberg.org/ebooks/11 - Alice's Adventures in Wonderland
- https://www.gutenberg.org/ebooks/1342 - Pride and Prejudice
- https://www.gutenberg.org/ebooks/98 - A Tale of Two Cities
- https://www.gutenberg.org/ebooks/219 - Heart of Darkness
- https://www.gutenberg.org/ebooks/514 - Little Women
- https://www.gutenberg.org/ebooks/4300 - Ulysses
- https://www.gutenberg.org/ebooks/1661 - Sherlock Holmes - A Study in Scarlet
"""
import json
from pathlib import Path
from gutenberg_downloader import GutenbergDownloader
def example_1_single_book():
"""Example 1: Download and process a single book."""
print("\n" + "=" * 70)
print("Example 1: Download and Process a Single Book")
print("=" * 70)
downloader = GutenbergDownloader(cache_dir="./gutenberg_cache")
# Download Alice in Wonderland
book_url = "https://www.gutenberg.org/ebooks/11"
print(f"\nDownloading from: {book_url}")
content = downloader.download_book(book_url, format_type="text")
if content:
print(f"Downloaded {len(content)} characters")
# Parse the book
book_data = downloader.parse_text_book(content)
print(f"\nBook Title: {book_data['title']}")
print(f"Chapters found: {len(book_data['chapters'])}")
print(f"Main text length: {len(book_data['main_text'])} characters")
# Display first chapter
if book_data['chapters']:
print(f"\nFirst chapter: {book_data['chapters'][0]}")
# Display first 500 characters of main text
print(f"\nFirst 500 characters of main text:")
print(book_data['main_text'][:500])
# Save to file
output_file = Path("./processed_books/alice.json")
output_file.parent.mkdir(parents=True, exist_ok=True)
with open(output_file, 'w', encoding='utf-8') as f:
json.dump(book_data, f, indent=2, ensure_ascii=False)
print(f"\nSaved to: {output_file}")
else:
print("Failed to download book")
def example_2_multiple_books():
"""Example 2: Download and process multiple books."""
print("\n" + "=" * 70)
print("Example 2: Batch Download Multiple Books")
print("=" * 70)
downloader = GutenbergDownloader(cache_dir="./gutenberg_cache")
# List of books to download
books = [
("https://www.gutenberg.org/ebooks/11", "Alice in Wonderland"),
("https://www.gutenberg.org/ebooks/1342", "Pride and Prejudice"),
("https://www.gutenberg.org/ebooks/98", "A Tale of Two Cities"),
]
results = downloader.process_books(
[book_url for book_url, _ in books],
format_type="text",
output_dir="./processed_books"
)
print(f"\nProcessed {len(results)} books:\n")
for i, result in enumerate(results, 1):
if result['status'] == 'success':
print(f"{i}. {result['title']}")
print(f" File: {result['file']}")
# Load and display stats
with open(result['file'], 'r', encoding='utf-8') as f:
data = json.load(f)
print(f" Chapters: {len(data['chapters'])}")
print(f" Text length: {len(data['main_text'])} characters")
else:
print(f"{i}. FAILED: {result['url']}")
print()
def example_3_process_and_extract():
"""Example 3: Process a book and extract specific information."""
print("\n" + "=" * 70)
print("Example 3: Process and Extract Specific Information")
print("=" * 70)
downloader = GutenbergDownloader(cache_dir="./gutenberg_cache")
# Download Pride and Prejudice
book_url = "https://www.gutenberg.org/ebooks/1342"
print(f"\nDownloading: {book_url}")
content = downloader.download_book(book_url, format_type="text")
if content:
book_data = downloader.parse_text_book(content)
print(f"\nTitle: {book_data['title']}")
print(f"Format: {book_data['format']}")
print(f"Source: {book_data['source']}")
# Extract and display chapters
print(f"\n--- Chapter Titles ({len(book_data['chapters'])} found) ---")
for i, chapter in enumerate(book_data['chapters'][:10], 1):
print(f"{i}. {chapter[:60]}") # Truncate for display
# Extract and display statistics
print(f"\n--- Content Statistics ---")
print(f"Total characters: {len(book_data['main_text']):,}")
print(f"Total words (approx): {len(book_data['main_text'].split()):,}")
print(f"Average chapter length: {len(book_data['main_text']) / len(book_data['chapters']):.0f} characters")
# Display text sample
print(f"\n--- Text Sample (first 800 characters) ---")
print(book_data['main_text'][:800])
print("...")
def example_4_save_as_text():
"""Example 4: Save extracted book as plain text file."""
print("\n" + "=" * 70)
print("Example 4: Save Book as Plain Text File")
print("=" * 70)
downloader = GutenbergDownloader(cache_dir="./gutenberg_cache")
# Download Little Women
book_url = "https://www.gutenberg.org/ebooks/514"
print(f"\nDownloading: {book_url}")
content = downloader.download_book(book_url, format_type="text")
if content:
book_data = downloader.parse_text_book(content)
# Create output file
output_file = Path("./processed_books/little_women.txt")
output_file.parent.mkdir(parents=True, exist_ok=True)
with open(output_file, 'w', encoding='utf-8') as f:
# Write title
f.write(f"{'='*70}\n")
f.write(f"{book_data['title']}\n")
f.write(f"{'='*70}\n\n")
# Write chapter list
if book_data['chapters']:
f.write("CHAPTERS:\n")
for chapter in book_data['chapters']:
f.write(f" - {chapter}\n")
f.write("\n" + "="*70 + "\n\n")
# Write main text
f.write(book_data['main_text'])
print(f"Saved to: {output_file}")
print(f"File size: {output_file.stat().st_size:,} bytes")
def example_5_extract_first_chapter():
"""Example 5: Extract and save only the first chapter."""
print("\n" + "=" * 70)
print("Example 5: Extract and Save First Chapter")
print("=" * 70)
downloader = GutenbergDownloader(cache_dir="./gutenberg_cache")
# Download A Tale of Two Cities
book_url = "https://www.gutenberg.org/ebooks/98"
print(f"\nDownloading: {book_url}")
content = downloader.download_book(book_url, format_type="text")
if content:
book_data = downloader.parse_text_book(content)
print(f"\nTitle: {book_data['title']}")
print(f"Chapters: {len(book_data['chapters'])}")
# Find first chapter marker in text
if book_data['chapters']:
first_chapter = book_data['chapters'][0]
print(f"\nFirst chapter: {first_chapter}")
# Save first chapter metadata
chapter_data = {
'book_title': book_data['title'],
'chapter_title': first_chapter,
'chapter_number': 1,
'text_preview': book_data['main_text'][:1000]
}
output_file = Path("./processed_books/chapter_extract.json")
output_file.parent.mkdir(parents=True, exist_ok=True)
with open(output_file, 'w', encoding='utf-8') as f:
json.dump(chapter_data, f, indent=2, ensure_ascii=False)
print(f"\nSaved chapter data to: {output_file}")
def example_6_api_usage():
"""Example 6: Using the downloader as a Python API."""
print("\n" + "=" * 70)
print("Example 6: Python API Usage")
print("=" * 70)
# Initialize downloader
downloader = GutenbergDownloader(cache_dir="./gutenberg_cache")
# Download a book
print("\nDownloading book...")
content = downloader.download_book(
"https://www.gutenberg.org/ebooks/11",
format_type="text"
)
# Parse the book
print("Parsing book...")
book_data = downloader.parse_text_book(content)
# Access data programmatically
print(f"\nBook Title: {book_data['title']}")
print(f"Format: {book_data['format']}")
print(f"Source: {book_data['source']}")
print(f"Chapters: {len(book_data['chapters'])}")
# Use the data in your application
book_json = json.dumps(book_data, ensure_ascii=False)
print(f"\nJSON representation size: {len(book_json):,} bytes")
def main():
"""Run all examples."""
print("\n")
print("#" * 70)
print("# Project Gutenberg Downloader - Usage Examples")
print("#" * 70)
# Run examples
try:
example_1_single_book()
except Exception as e:
print(f"Example 1 error: {e}")
try:
example_2_multiple_books()
except Exception as e:
print(f"Example 2 error: {e}")
try:
example_3_process_and_extract()
except Exception as e:
print(f"Example 3 error: {e}")
try:
example_4_save_as_text()
except Exception as e:
print(f"Example 4 error: {e}")
try:
example_5_extract_first_chapter()
except Exception as e:
print(f"Example 5 error: {e}")
try:
example_6_api_usage()
except Exception as e:
print(f"Example 6 error: {e}")
print("\n" + "=" * 70)
print("All examples completed!")
print("=" * 70 + "\n")
if __name__ == "__main__":
main()
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