code: def path_size(path, total=False, ext='', level=None, verbosity=0):
      
      dict_of_path_sizes = dict((d['path'], d['size']) for d in util.find_files(path, ext=ext, level=level, verbosity=0))
      if total:
          return reduce(lambda tot, size: tot + size, dict_of_path_sizes.values(), 0)
      return dict_of_path_sizes
docs: Walk the file tree and query the file.stat object(s) to compute their total (or individual) size in bytes
  
      Returns:
        dict: {relative_path: file_size_in_bytes, ...}
  
      Examples:
        >>> all(d >= 0 for d in path_size(__file__).values())
        True
        >>> sum(path_size(os.path.dirname(__file__)).values()) == path_size(os.path.dirname(__file__), total=True)
        True
        >>> path_size(__file__, total=True) > 10000
        True
        >>> len(path_size('.')) >= 2
        True