Why two variables in the for loop?

What enumerate does is essentially assigns var1 and var2 two separate pieces of information.

If you were to write :

for index, items in enumerate(a_list): blah blah blah

basically what is happening is that enumerate is assigning the index of the list to the variable "index" and the item at that index to the variable "items" This is useful because every time the loop runs again, the index is increased by one and therefore the item is the next item in the list.

so, instead of doing something like this:

count = 0

for items in a_list: print(a_list[count]) count += 1

you can do this:

for idx, items in enumerate(a_list): print(a_list[idx])

or some variation. It essentially saves you some variable declaration