Why is the heap memory in python called private?

Question

As the title says, why is the heap memory called private heap in Python?

PS: I've already searched enough over the Inte.net, but did not find anything that explains specifically on why is it called private?

Answer 1

To paraphrase the memory management docs :

Memory management in Python involves a private heap containing all Python objects and data structures. The management of this private heap is ensured internally by the Python memory manager. [...] It is important to understand that the management of the Python heap is performed by the interpreter itself and that the user has no control over it [...]

In other words, it is private to the interpreter and managed by the interpreter.

In a broader sense, it's also private to the process running the interpreter, and not eg shared memory, but that's somewhat beyond the point.