Compute π using Nilakantha's series

compute_pi.py

from decimal import *

def compute_pi():
    pi = Decimal(3.0)
    curr_multiplier = Decimal(2)
    iteration = Decimal(0)
    load = Decimal(1)
    getcontext().prec = 6

    while 1:
        load = Decimal(4.0) / (curr_multiplier * (curr_multiplier+1) * (curr_multiplier+2))
        
        if iteration % 2 == 0:
            pi += load
        else:
            pi -= load
        print pi, curr_multiplier, iteration
        curr_multiplier += 2
        iteration += 1
        getcontext().prec += 1

compute_pi()