What are metaclasses? What are they used for?

So what I'm looking for here is something like PHP's print_r function. This is so I can debug my scripts by seeing what's the state of the object in question.

I'm experimenting with asynchronous patterns in Python and was curious what happens if I define a __del__ method using async def in Python 3.12. For example: class MyClass: async def __del__(self):...

How do I find out the name of the class used to create an instance of an object in Python? I'm not sure if I should use the inspect module or parse the __class__ attribute.

Given that a function a_method has been defined like def a_method(arg1, arg2): pass Starting from a_method itself, how can I get the argument names - for example, as a tuple of strings, like (&...

I want to cache instances of a class because the constructor is complicated and repeated uses won't alter the contents. This works great. However, I want to create a classmethod to clear the cache. In ...

For logging purposes I want to retrieve the fully qualified class name of a Python object. (With fully qualified I mean the class name including the package and module name.) I know about x.__class__....

I want to be able to create a class (in Python) that once initialized with __init__, does not accept new attributes, but accepts modifications of existing attributes. There's several hack-ish ways I ...

I am trying to implement slice functionality for a class I am making that creates a vector representation. I have this code so far, which I believe will properly implement the slice but whenever I do ...

How can I get the class that defined a method in Python? I'd want the following example to print "__main__.FooClass": class FooClass: def foo_method(self): print "foo" class BarClass(...

I have a class where I want to override the __eq__ method. It seems to make sense that I should override the __ne__ method as well. Should I implement __ne__ as the negation of __eq__ as such or is it ...

... the is keyword that can be used for equality in strings. >>> s = 'str' >>> s is 'str' True >>> s is 'st' False I tried both __is__() and __eq__() but they didn't work. ...

somewhat inexperienced in python. I am coming from C# world, and I am trying to figure out what is the best practice to create a data structure in python that: can have empty fields (None) can have ...

python newbie: I need to create an empty data model class, populate it with values and then convert it to JSON string, however i am missing something important here. see error below my data class: ...

I want to a method that runs when object reference count is changed. is there a method like the following code ? class Foo(): def __method__(self): print("ojbect reference count is ...