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The one with super has greater flexibility

The call chain for the methods can be intercepted and functionality injected. Super() lets you avoid referring to the base class explicitly, which can be nice But the main advantage comes with multiple inheritance, where all sorts of fun stuff can happen. In fact, multiple inheritance is the only case where super() is of any use I would not recommend using it with classes using linear inheritance, where it's just useless overhead. I'm currently learning about class inheritance in my java course and i don't understand when to use the super() call

I found this example of code where super.variable is used As for chaining super::super, as i mentionned in the question, i have still to find an interesting use to that For now, i only see it as a hack, but it was worth mentioning, if only for the differences with java (where you can't chain super). 'super' object has no attribute '__sklearn_tags__' This occurs when i invoke the fit method on the randomizedsearchcv object I attempted to tune the hyperparameters of an xgbregressor.

I wrote the following code

When i try to run it as at the end of the file i get this stacktrace 'super' object has no attribute do_something class parent If you add any other column/attribute to a primary key then it become a super key, like employeeid + fullname is a super key If a table don't have any individual columns that qualifies for a candidate key, then you have to select 2 or more columns to make a row unique. Super() is how the parent or super class constructor for a java class is invoked in a derived class There was a fair amount of churn in the terminology during the first years of object oriented programming as various people worked in the area and published papers and books and developed object oriented languages.

Super e>) says that it's some type which is an ancestor (superclass) of e Extends e>) says that it's some type which is a subclass of e (in both cases e itself is okay.) so the constructor uses the Extends e form so it guarantees that when it fetches values from the collection, they will all be e or some subclass (i.e