help with game

[Windspar]

I want to learn how to make games just like old style was, with functions.

    Almost all program language have some type of structures. Python and old style is not going to work.
Python has built in polymorph. Almost all python is object base. An modern programming helps reduce size of code.
    Take classes. Add a namespace to object and create many different objects quickly. Methods are just function wrap in a class. You always could check out assembly code for old programming.
linux nasm assembly example

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; nasm hello asm

; nasm -f elf hello.asm
; ld -m elf_i386 hello.o -o hello


SECTION .data
msg db 'Hello World!', 0Ah
msg2 db 'Hello, brave new world!', 0Ah

SECTION .text
global _start

_start:
    mov    edx, 13
    mov ecx, msg
    mov ebx, 1        ; stdout
    mov eax, 4        ; system write
    int 80h
    
    mov ebx, msg2
    mov eax, ebx

; count    char in string
nextchar:
    cmp byte [eax], 0
    jz finished
    inc eax
    jmp nextchar
    
finished:
    sub eax, ebx
    
    mov edx, eax
    mov ecx, msg2
    mov ebx, 1        ; stdout
    mov eax, 4        ; system write
    int 80h
    
    ; exit call
    mov ebx, 0
    mov eax, 1
    int 80h

in python

print("Hello World!")
print("Hello, brave new world!")

Please can you tell me where did learned all this, or do you know any tutorials or books that help begginers to reach this advanced levels.

I learn by making little programs.
Testing one thing to death.
learn by runtime errors. 
using print(dir(on object)) to see there variables and methods and builtins
read docs and code

There is no magic formula to making programs.
nothing but commands and pushing and altering numbers around.
strings are nothing but numbers.

I don't call this advance stuff. Just basic python.