Convert iBooks to normal pub packages, maintaining metadata

iBooks-convert.py

import os
import subprocess

filenames = []
# old path with ibooks
oldpath = "/path/to/ibooks/"
# Path to store new epub files in
newpath = "/new/path/for/epubs/"

#   Function to store all filenames in a list
def extract_filename(path_to_files=oldpath):
    os.chdir(path_to_files)
    books = os.getcwd()
    path_to_files = path_to_files
    for f in os.listdir(books):
        f_name, f_ext = os.path.splitext(f)
        if f_ext == ".epub":
            filenames.append(f_name)

    filenames.sort()

#   Function to generate new epub files
def create_epub(path_to_new_files=newpath): 
    for n,f in enumerate(filenames):
        cd_cmd = f"cd '{oldpath}{f}.epub'"
        rm_plist_cmd = f"rm {oldpath}iTunesMetadata.plist"
        zip_cmd = f"zip -X -r '{path_to_new_files}{f}.epub' mimetype *"
        all_cmd = "; ".join([cd_cmd, rm_plist_cmd, zip_cmd])
        p1 = subprocess.run(all_cmd, capture_output = True, text = True, shell = True)
        success = p1.returncode
        if success == 0:
            print(f'File {f[:10]}...{f[-5:]}.epub has been processed successfully. \n> {len(filenames)-n} to go.')
        else: 
            print("Error:", p1.stdout)
            print(p1.stderr)

#   Enter the paths
extract_filename()
print(f"Converting {len(filenames)} epubs:", filenames)
create_epub()