new_contents: #!/usr/bin/env python3
  
  # List files in Data directory not present in the Complete directory.
  
  import os
  
  home = os.environ['HOME']
  
  def find_files(path):
    f = []
    for i in os.listdir(path):
      if os.path.isfile(os.path.join(path, i)):
        f.append(i)
    return f
  
  completeFiles = find_files(os.path.join(home, 'Downloads', 'Complete'))
  
  for x in sorted(find_files(os.path.join(home, 'Downloads', 'Data'))):
    if x not in completeFiles:
      print(x)
  
subject: add scripts/data_stranded_files.py