[PeterT]

Just wrapping the script in a [code]....[/code] block for clarity

Originally Posted by Bill Overal

import xml.etree.ElementTree as ET
import os

def opf_to_enw(opf_path):
    try:
        tree = ET.parse(opf_path)
        root = tree.getroot()
        ns = {
            'dc': 'http://purl.org/dc/elements/1.1/',
            'opf': 'http://www.idpf.org/2007/opf'
        }

        title = root.find('.//dc:title', ns)
        creators = root.findall('.//dc:creator', ns)
        publisher = root.find('.//dc:publisher', ns)
        date = root.find('.//dc:date', ns)
        identifiers = root.findall('.//dc:identifier', ns)

        author_lines = [f"%A {c.text.strip()}" for c in creators if c.text]

        isbn = None
        for ident in identifiers:
            text = ident.text.strip() if ident.text else ''
            if len(text) in [10, 13] and text.isdigit():
                isbn = text
                if len(text) == 13:
                    break

        enw_lines = ['%0 Book']
        if title is not None and title.text:
            enw_lines.append(f"%T {title.text.strip()}")
        enw_lines.extend(author_lines)
        if date is not None and date.text:
            enw_lines.append(f"%D {date.text.strip()}")
        if publisher is not None and publisher.text:
            enw_lines.append(f"%I {publisher.text.strip()}")
        if isbn:
            enw_lines.append(f"%@ {isbn}")

        # Save file with same base name
        enw_path = opf_path.replace('.opf', '.enw')
        with open(enw_path, 'w', encoding='utf-8') as f:
            f.write('\n'.join(enw_lines) + '\n')
        print(f"✔ Converted: {os.path.basename(opf_path)}")
    except Exception as e:
        print(f"✘ Error processing {opf_path}: {e}")

if __name__ == "__main__":
    folder = os.path.dirname(os.path.abspath(__file__))
    print(f"�� Processing .opf files in folder: {folder}\n")

    for file in os.listdir(folder):
        if file.lower().endswith('.opf'):
            opf_to_enw(os.path.join(folder, file))

    print("\n✅ Done. .enw files saved in the same folder.")
    input("\nPress Enter to close.")