[FIXED] Is there a function in Python for counting the number of outputs created from a 'for' loop with a break?

Issue

I have written a "for" "in" "range" loop in python, and placed a "break" function for the loop to end at a specific condition. I need to produce a count for how many iterations the loop makes before it stops at the break point, but I can't find the right function. Any ideas?

I have attempted to create a list of the the range() values, and then use the len() function to get a count, but the range() list doesn't recognize the break function, and it just gives me a list of every iteration until the range ends.

    for val in range(Nmax):    
        x_n1 = x_n - f(x_n)/fprime(x_n)

        print(x_n1)

        if( abs((x_n1 - x_n) / (0.5 * (x_n1 +x_n))) < delta ):
            break
        x_n = x_n1

The output is a list of numbers for each successful iteration. I need to produce an additional output that provides a count of all of the outputs before the break is hit.

Solution

Since you are using range, val will count loop iterations.

for val in range(Nmax):    
    x_n1 = x_n - f(x_n)/fprime(x_n)

    print(x_n1)

    if( abs((x_n1 - x_n) / (0.5 * (x_n1 +x_n))) < delta ):
        break
    x_n = x_n1

print(val)

Answered By - Deepstop