what exactly happens internally in this python code?

Question

The code is
a=7
b=5
a,b=b,a
print(a,b)
I know the above code swaps the numbers.But what is happening behind the operation internallly?

Answer 1

a=a+b
b=a-b
a=a-b

does that make any sense?
idk if thats what you want to know. i saw something like that in a meme..😂😂.

Answer 2

Akib Reza I know your code.But what abt my code in python?

Answer 3

Jay Matthews how's it possible.please explain.

Answer 4

7,5 = 5,7
And I don’t know if a,b is a proper way to write that because I don’t program in python but yeah the simple answer to this is 7,5 = 5,7 (a,b = b,a)

Answer 5

@akib Reza if that were the case then wouldn’t
a= 12
b = -2
a= 10?

Answer 6

Its just swapping integers what the problem in that?

In c there is pointers which points to the memory address of a variable. In you example values in the memory address is swapped.

its just saying
set a= the value of b
and set b = the value of a
you need to store the value in a temp variable or do what i did in the previous answer.

Answer 7

leon santos
a= 12
b= 12-b
b= 12- 5 =7
a = 12- b
a= 12-7=5

Answer 8

I wasn’t saying it was a problem I just didn’t understand it because In js it replaces previous variables for example if a=2
B= 2+ a
Then a = b
the value of b would be 4 because (a)2+ 2(a) = 4 that’s why I thought it was 10