new_contents: import zipfile
  import os
  
  working_folder = 'C:\\dev\\Testing\\'
  
  for subdir, dirs, files in os.walk(working_folder):
      for file in files:
          print(os.path.join(subdir, file))
  
  
  files = os.listdir(working_folder)
  
  files_py = []
  
  for f in files:
      if f.endswith('py'):
          fff = os.path.join(working_folder, f)
          files_py.append(fff)
  
  ZipFile = zipfile.ZipFile("zip testing3.cbz", "w" )
  
  for a in files_py:
      ZipFile.write(a, os.path.basename(a), compress_type=zipfile.ZIP_DEFLATED)
  
  #print('Done')
  
  
  
  
subject: add files to zip or list files in folder.