Square Root created by Pawtiko - https://repl.it/DpAW/10

Square Root.py

import math
number = eval(input("Enter a postive number: "))
lower = 0
#example: sqrt(0.5) is greater than 0.5
if number <= 1:
	upper = number + 1
else:
	upper = number
guess = 0
sqrt = 0
done = False
iterations = eval(input("Maximum iterations: "))
required = iterations
while done == False:
	if guess**2 == number:
		sqrt = guess
		done = True
	guess = (upper + lower) / 2
	if guess**2 < number:
		lower = guess
	elif guess**2 > number:
		upper = guess
	iterations -= 1
	if iterations == 0:
		sqrt = guess
		done = True
	
print(sqrt)
print('Iterations performed:',required - iterations)