Sep 22, 2010 · It's unfortunate that the answers all seem to answer the question "How do I serialize a class?" rather than the action question "How do I make a class serializable?" These answers assume …

Jun 10, 2020 · This process is the same as Python asking a class what to do by calling __getattr__ when you reference one of its attributes by doing myclass.attribute. A metaclass essentially decides …

In Python, sequences are iterable too so one way to make an iterable class is to make it behave like a sequence, i.e. give it __getitem__ and __len__ methods. I have tested this on Python 2 and 3.

A simple decorator @add_objprint will help you add the __str__ method to your class and you can use print for the instance. Of course if you like, you can also use objprint function from the library to print …

Mar 19, 2019 · My class implements an iterator so I can do: for i in class(): But I want to be able to access the class by index as well: class()[1] How can I do that?

Python usually relies on library implementers and library users being consenting adults, and instead of really enforcing an interface, the interface should be clearly stated in the documentation. This is why …

I am coding a small Python module composed of two parts: some functions defining a public interface, an implementation class used by the above functions, but which is not meaningful outside the mod...

I have a list of custom-class objects (sample is below). Using: list (itertools.chain.from_iterable (myBigList)) I wanted to "merge" all of the stations sublists into one big list.

A simple solution would be to call json.dumps() on the .__dict__ member of that instance. That is a standard Python dict and if your class is simple it will be JSON serializable.

Mar 25, 2011 · Is it possible to make a python class iterable itself using the standard syntax? That is, I'd like to be able to iterate over all of a class's attributes using for attr in Foo: (or even if attr in Foo) …