Assignment of objects in Python

Question

Objects - on the heap
Operation required-assignment (=)
Assumptions -
1 objects will be moved from heap to stack for the assignment
2 obj1 has 6 properties
obj2 has 7 properties
Expected -MEMORY LEAK
Is this correct ?

Answer 1

Volodymyr Chelnokov 👋

Answer 2

Volodymyr Chelnokov does the assignment occur on the stack..
If so how does the garbage collector work? AFAIK this is on the heap... 🤔

Answer 3

If you think in terms of C, you can treat any Python variable as a pointer to PyObject. So object assignment is a pointer assignment.

For getting rid of memory leaks Python has a garbage collector - any object that is not reachable (i. e. your program has no way of reading or modifying it in the future) is destroyed.

Answer 4

Sanjay Kamath all variables live on heap. Python stack is not the same thing as machine call stack - it is just a linked list of PyFrameObject structures, which also live on the heap. You can watch https://m.youtube.com/watch?feature=youtu.be&v=smiL_aV1SOc for information on it

The only things that live on machine stack are internal variables of the interpreter.