Python objects are “reference counted.” This means that whenever an object is assigned a new name (“a = 4” creates an object “4” and the name “a” is a pointer to the object), or ...

Python’s implementation of object orientation does have a few quirks. For example, if you create a class variable, it can be read from a subclass without specifying scope like you’d expect.

Understanding classes in Python. Before diving into metaclasses, it’s essential to have a solid grasp of classes in Python. In Python, a class is a blueprint for creating objects.

Python grants its users many conveniences, and one of the largest is (nearly) hassle-free memory management. You don’t need to manually allocate, track, and dispose of memory for objects and ...

As pure Python code, it’s slow, because Python must convert back and forth between machine-native numerical types and its own internal object types. Now consider the Cython version of the same ...

With FastHTML, you can create this application using primarily Python code. The framework uses Python objects to represent HTML elements, eliminating the need for template engines like Jinja.

You can use these quantum objects in regular arithmetic operations, just like any other Python objects. For example, if you have two Pauli operators, sz and sy, you could create a Hamiltonian, like ...

Generally, when a Python call hands an object out to a C program, it increments the reference count by one. The C code can then do what it likes with the object without worrying that it will be ...