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How does __proto__ differ from constructor.prototype?
It always returns the object with rating = 3.
8 Answers
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How to find all the subclasses of a class given its name?
I need a working approach of getting all classes that are inherited from a base class in Python.
10 Answers
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What is the __del__ method, How to call it?
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__del__ is a finalizer. It is called when an object is garbage collected which happens at some point after all references to the object have been deleted.
In a simple case this could be right after you say del x or, if x is a local variable, after...
__proto__ VS. prototype in JavaScript
...e is the object that is used to build __proto__ when you create an object with new:
( new Foo ).__proto__ === Foo.prototype;
( new Foo ).prototype === undefined;
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Build a Basic Python Iterator
How would one create an iterative function (or iterator object) in python?
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__lt__ instead of __cmp__
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Yep, it's easy to implement everything in terms of e.g. __lt__ with a mixin class (or a metaclass, or a class decorator if your taste runs that way).
For example:
class ComparableMixin:
def __eq__(self, other):
return not ...
filename and line number of python script
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edited Jan 4 at 13:53
Yash
5388 bronze badges
answered Jun 16 '10 at 18:52
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How to invoke the super constructor in Python?
In all other languages I've worked with the super constructor is invoked implicitly. How does one invoke it in Python? I would expect super(self) but this doesn't work.
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How to retrieve a module's path?
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edited Aug 15 '19 at 11:13
Roman Orac
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Confused about __str__ on list in Python [duplicate]
...t uses str(); printing a list containing an object uses str() for the list itself, but the implementation of list.__str__() calls repr() for the individual items.
So you should also overwrite __repr__(). A simple
__repr__ = __str__
at the end of the class body will do the trick.
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