Python function generates a random point inside a circle and returns its X and Y coordinates as a tuple.

circle.py

import math
from random import random


def getRandomPointInCircle(radius):
"""
Function generates a random point inside a circle
and returns its X and Y coordinates as a tuple.
"""

    t = 2 * math.pi * random()
    u = random() + random()
    r = None

    if u > 1:
        r = 2 - u
    else:
        r = u

    result = radius * r * math.cos(t), radius * r * math.sin(t)
    return result

# Main function for testing
if __name__ == "__main__":

    point = None

    for r in range(1, 100):
        point = getRandomPointInCircle(r)
        print "X: %d, Y: %d" % (point[0], point[1])