Simple for loop question

Question

mysum=0
for i in range(5,11,2)
mysum +=i
if mysum==5:
break
mysum +=1
print(mysum)

In line 3, when I remove = operator , the result would be zero
Why we need to add '=' ?

Answer 1

Because mysum+=i is equivelent to mysum=mysum+i..
so if u do not assign mysum+i value to mysum variable..the result would show you zero.. did u understand????

Answer 2

if we don't add '=' , we cannot add mysum to i
That the area I am confusing

Answer 3

I just found the answer.thank you!!
If I have a '/' instead of '+', the left side element would be divided by right side element.
That mean when I have a single element on left-hand side, I replace that single element with whatever's on the right-hand side

Answer 4

not only / operator but will work * , - n % too..
= operator assigns value so if u write mysum+i there will b no logic ..we want there = to assign the calculation to mysum variable..

Answer 5

Sorry but why mysum+= i is equivalent mysum=mysum+1??

Answer 6

not 1 sorry i

Answer 7

Oh I try to change mysum+=i to mysum=mysum+ i
And it works!!

Answer 8

That meaning there is an operator '+='??

Answer 9

what

Answer 10

Sorry
I could not understand the purpose of += here