error handling

[SOORAJ B.P]

I'm pretty new to python 

I tried running the example given in the documentation page and I keep getting errors.

Any help would be appreciated . This is for a project.

C:\Users\V\Documents>proto.py lon
Traceback (most recent call last):
  File "C:\Users\V\Documents\proto.py", line 22, in <module>
    callback = DemoCallback("Des is a Te")
  File "C:\Users\V\Documents\proto.py", line 9, in __init__
    super().__init__()
TypeError: super() takes at least 1 argument (0 given)