Sep 22, 2010 · super() is a special use of the super keyword where you call a parameterless parent constructor. In general, the super keyword can be used to call overridden methods, access hidden …

Feb 23, 2009 · 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.

Nov 3, 2015 · The one without super hard-codes its parent's method - thus is has restricted the behavior of its method, and subclasses cannot inject functionality in the call chain. The one with super has …

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.

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 …

Sep 2, 2009 · The first (<? super E>) says that it's "some type which is an ancestor (superclass) of E"; the second (<? extends E>) says that it's "some type which is a subclass of E". (In both cases E itself …

Jul 9, 2018 · I wrote the following code. When I try to run it as at the end of the file I get this stacktrace: AttributeError: 'super' object has no attribute do_something class Parent: def __init__(self):...

What is the difference between List<? super T> and List<? extends T> ? I used to use List<? extends T>, but it does not allow me to add elements to it list.add (e), whereas the Li...

Feb 23, 2018 · When you use super() instead, Python's perform the method search for the next parent class looking on the class's __mro__ attribute (mro = method resolution order. __mro__ is a concrete …

Oct 29, 2013 · super in Generics is the opposite of extends. Instead of saying the comparable's generic type has to be a subclass of T, it is saying it has to be a superclass of T. The distinction is important …