Python/numpy: how to increase an array by one row without using extra memory?

Question

Python

There is a large numpy array, very large - barely fits in RAM.
Is there a way to quickly append a newline to it without using extra memory or copying the variable? It is to add to an existing array without allocating additional memory for its copy. There is no way to convert to something, you need exactly numpy.array.
Thank you.

Answer 1

It is forbidden. This is the difference between an array and a list. A list is easier to expand than an array, because an array stores all of its data in one block, while a list only stores references to its elements in one block.
You need to either allocate an array with a margin, or flush the data to disk for later reading into a numpy array.

Answer 2

No.
To do what you want - you need the program to grab the memory immediately after the array, so that there is where to stretch it.
This can't be done even in C++, let alone Python.
Edit: Generally speaking, C++ has realloc, but it does not guarantee that an existing memory area will be extended. Because she might be busy with something else.