Can you explain the concept of heap in the context of memory management?

Heap is a region of dynamic memory used for storing objects and data whose size or lifetime is unknown in advance. In the context of memory management, the heap differs from the stack in that memory is allocated and freed manually or automatically (e.g., by a garbage collector).

In Python, objects are created on the heap, and references to them are stored in variables. When an object is no longer needed and has no references, the garbage collector frees the memory.

Example: when creating a list or dictionary, memory is allocated on the heap, and these objects can live as long as needed, regardless of the scope of variables.

my_list = [1, 2, 3]  # list is created on the heap

Thus, the heap provides flexible memory management for objects with dynamic lifetimes.