[BEGINNER LEVEL] Simple Python Question

Question

Hi guys,

I would like to ask why:

print(3*('a'+" "+'b')) = a ba ba b

Can someone please explain this to me.

Thank you.

Answer 1

print(3*('a'+" "+'b')) = a ba ba b

('a'+" "+'b') gives 'a b'
3* repeates 'a b' 3 times so it gives:
'a ba ba b'

Answer 2

its not a bug. if you want is a as variables, declare the variable first, and call it like this
3*(a+b) not ('a' + ' ' + 'b')

Answer 3

'a' + " " + 'b' will results in "a b"
so 3 * "a b" -> a ba ba b
(unless you put additional space behind it will be a b a b a b)

Answer 4

Btw multiplication for strings will results like copying it 3 times

Answer 5

I tried 3*(a+b) its result is ab ab ab as it first calculates a+b then multiplies to 3.

I am confused how 3*(a b) became a ba ba b

I am thinking what multiplication properties applied in this equation.

Or thinking this is a bug?

BTW.

Thanks guys.

Answer 6

I am aware that multiplying strings results copying it n times.

3*(' '+'a'+' '+'b')=3*(' a b')= a b a b a b

3*(' '+'a'+'b')=3*(' ab')= ab ab ab

3*('a'+'b') = 3*('ab')=ababab

But I am really confused how:

3*('a' + ' ' + 'b') = 3*('a b') = a ba ba b

Can you (someone) elaborate how this happen?