def point_line_distance(px, py, a, b, c):
    """
    Given a point (px, py) and line coefficients a, b, and c, calculate and 
    return the distance between the point and the line ax+by+c=0.
    """
    return None  # your code here

if __name__ == "__main__":
    # Local testing -- feel free to add your own tests as well!
    print("Distance between point (1, 2) and line  3x + 4y + 5 = 0 is 3.2")
    print(point_line_distance(1, 2, 3, 4, 5))
