python - How do I print only the last value in a for loop?

Question

For the below code, I only want to print the last approximation for the squareroot function, instead of printing out every approximation.

def square(x):
    guess = int(x/2)
    for i in range(1,10):
        nextguess = (guess + x/guess)/2
        guess=nextguess
        print(nextguess)

Answer 1

Just de-denting your print() will work:

def square(x):
    guess = int(x/2)
    for i in range(1,10):
        nextguess = (guess + x/guess)/2
        guess=nextguess
    print(nextguess)

After the loop, nextguess still has the value form the last cycle. In Python, a loop does not create a new scope. So, everything you create or change in the loop is still available after the loop.