code: def recursive_unicode(obj):
      
      if isinstance(obj, dict):
          return dict((recursive_unicode(k), recursive_unicode(v)) for (k, v) in obj.items())
      elif isinstance(obj, list):
          return list(recursive_unicode(i) for i in obj)
      elif isinstance(obj, tuple):
          return tuple(recursive_unicode(i) for i in obj)
      elif isinstance(obj, bytes_type):
          return to_unicode(obj)
      else:
          return obj
docs: Walks a simple data structure, converting byte strings to unicode.
  
      Supports lists, tuples, and dictionaries.