what is >>a<<(this one) for a in range(5,7)

Question

I know for loops but what is that a in the beginning? sometimes it is a*2 for a in range (5,7)
can you explain the beginning of for ?

Answer 1

a is the variable in the statements in the loop. It will represent the value which is collected from the range (this time 5 for the first loop and 6 for the second loop).