AttributeError: 'str' object has no attribute 'decode'

[sprite311]

in python 3.9
Internal Server Error: /api/source/tables/31fd290a-2f2e-44d1-a1c9-c5866c079229
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
response = get_response(request)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
File "D:\code\databoard-dashboard\py_vislib-master\vislib\views\source.py", line 129, in sourceTables
tableName = list(table.values())[0].decode('utf-8')
AttributeError: 'str' object has no attribute 'decode'
[21/Dec/2021 11:45:26] "GET /api/source/tables/31fd290a-2f2e-44d1-a1c9-c5866c079229 HTTP/1.1" 500 78080

modify：
# tableName = list(table.values())[0].decode('utf-8')
tableName = list(table.values())[0]