Introduction to Calibre-ebook

Calibre-ebook is a powerful open-source e-book management tool that allows users to manage their e-book collections, convert e-books between different formats, and sync e-books to different devices. It also provides a plethora of APIs that developers can use to create custom applications and automate various tasks.

Calibre-ebook API Examples

1. Adding a Book to the Library

  import calibre
  from calibre.constants import config_dir

  def add_book(file_path):
      library_db = calibre.library.LibraryDatabase(config_dir())
      book_id = library_db.add_books(file_path)
      return book_id

  # Example usage
  book_id = add_book("/path/to/your/book.epub")
  print(f"Added book with ID: {book_id}")

2. Converting E-books

  from calibre.ebooks.conversion.plumber import Plumber

  def convert_book(input_path, output_path, output_format):
      plumber = Plumber(input_path, output_path, output_format)
      plumber.run()
      
  # Example usage
  convert_book("/path/to/your/book.epub", "/path/to/your/book.mobi", "mobi")
  print("Conversion complete")

3. Fetching Metadata

  from calibre.ebooks.metadata.book.base import Metadata

  def get_metadata(file_path):
      book_metadata = Metadata(file_path)
      metadata = book_metadata.get_metadata()
      return metadata

  # Example usage
  metadata = get_metadata("/path/to/your/book.epub")
  print(f"Book metadata: {metadata}")

4. Searching Books in Library

  from calibre.library import LibraryDatabase
  from calibre.constants import config_dir

  def search_books(query):
      library_db = LibraryDatabase(config_dir())
      results = library_db.search_books(query)
      return results

  # Example usage
  search_results = search_books("title: 'The Great Gatsby'")
  print(f"Search results: {search_results}")

5. Removing a Book from Library

  from calibre.library import LibraryDatabase, db

  def remove_book(book_id):
      library_db = LibraryDatabase(config_dir())
      library_db.remove_books(book_id)

  # Example usage
  remove_book(book_id)
  print(f"Book with ID {book_id} removed")

Example Application Using Calibre-ebook APIs

Here’s a simple example of an application that uses the above APIs to manage a collection of e-books. This application allows users to add books to their library, convert their format, fetch metadata, search for books, and remove books from the library.

  import sys

  def main():
      print("Welcome to the E-book Manager")
      while True:
          print("\nOptions:")
          print("1. Add Book")
          print("2. Convert Book")
          print("3. Fetch Metadata")
          print("4. Search Books")
          print("5. Remove Book")
          print("6. Exit")
          choice = input("Enter your choice: ")
        
          if choice == "1":
              file_path = input("Enter the file path of the book: ")
              book_id = add_book(file_path)
              print(f"Added book with ID: {book_id}")
          elif choice == "2":
              input_path = input("Enter the input file path: ")
              output_path = input("Enter the output file path: ")
              output_format = input("Enter the output format (e.g., mobi): ")
              convert_book(input_path, output_path, output_format)
              print("Conversion complete")
          elif choice == "3":
              file_path = input("Enter the file path of the book: ")
              metadata = get_metadata(file_path)
              print(f"Book metadata: {metadata}")
          elif choice == "4":
              query = input("Enter the search query: ")
              results = search_books(query)
              print(f"Search results: {results}")
          elif choice == "5":
              book_id = input("Enter the book ID to remove: ")
              remove_book(book_id)
              print(f"Book with ID {book_id} removed")
          elif choice == "6":
              print("Exiting the E-book Manager")
              sys.exit()
          else:
              print("Invalid choice. Please try again.")

  if __name__ == "__main__":
      main()

Hope this guide helps you get started with using Calibre-ebook and its powerful APIs to manage your e-book collection efficiently.

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