Question

hi, in lecture 03 the tuple part, what did he change to make the tuple divisor script work?

Answer 1

right, it's a comma after the i, ie (i,)
anyone know why does there need to be a comma?

Answer 2

there has to be a comma because it's a tuple assignment statement. For instance, when you assign a tuple initially, if you only want to put one value (say, 8) in it, you assign it

t = 8,

the way I think of it is that you're not trying to assign "the tuple" t the value 8. you're reassigning the tuple t to every element in it with the new element at the end.

so if I'm using the tuple m, saying

m+= 7,

is like saying

m = m[0],m[1],...7

the comma looks funny when you're only assigning one item, as in

m = 7,

but it's just a syntax rule that it has to be there.

Answer 3

i understand now, thanks!