Answers to common questions

Abbreviations: Q uestion -- P roblem -- S olution

Q: I follow your recommendation to call super().__init__(dom, ran) in the __init__() method of my MyOperator, but I get the following error:
```
File <...>, line ..., in __init__
    super().__init__(dom, ran)

TypeError: super() takes at least 1 argument (0 given)
```
P: The super() function in Python 2 has to be called with a type as first argument, whereas in Python 3, the type argument is optional and usually not needed.

S: We recommend to include from builtins import super in your module to backport the new Py3 super() function. This way, your code will run in both Python 2 and 3.