classes and object (distance)

[vlady]

Hello,

I am learning classes and object and I have a problem with this code. Simply does not work. Can you tell me the reason please? Error message tells me that Distance is not defined...(I don´t understand this message)

Thank you for help!

Vlady

class Distance(object):
    'return distance between 2 points'
    point=Distance()
    point.x=3.0
    point.y=4.0
    print_distance(point)

def print_distance(d):
    distance = math.sqrt(d.x**2 + d.y**2)
    print distance

def main():
    pass

if __name__ == '__main__':
    main()

[TrustyTony]

You have everything wrong, study more, and start fresh when you understand basics. I would consider making distance a method of Point class. Repeat especialy these:__init__ method and self parameter.

[vlady]

You are very helpful MR TONY!