How many elements of memory are reserved for python list (in standard CPython) by number of items.

How_much_list_weight.py

list_size = 0
# memory_size means total memory for this list whithout header memory
memory_size = 0
last_memory_size = 0
# if one element takes eight bytes of memory total
# then list with 2**20 elements weights 8 megabytes
# (it should be true at least for list with several kinds of elements, like True/False or 0/.../9)
max_output = 2**20

output1 = 'Visible elements:'
output2 = 'Total elements:'
print(f"{output1} - elements in python's list, which we can use in code")
print(f"{output2} - elements of memory, which are reserved for this list")
print(f"*this data is actual for the most popular realisation of python - CPython.)")
width1 = len(output1)
width2 = len(output2)
print(f'{{: <{width1}}} | {{: <{width2}}}'.format(output1, output2))
# ns - number system. d for decimal, x for hexadecimal, o for octal, b for binary
ns = 'd'
while True:
    print(f'{{: >{width1}}} | {{: >{width2}_{ns}}}'.format(f'{list_size:_{ns}} - {memory_size:_{ns}}', memory_size))

    if memory_size >= max_output:
        break

    list_size = memory_size + 1
    if list_size <= 8:
        memory_size = list_size + 3
    else:
        memory_size = list_size + list_size // 8 + 6
    
# This addiction is similar to the Fibonacci series
# Эта зависимость похожа на ряд Фибоначчи