Question

Checking Scalene Triangle ( I am learning from http://www.pyschools.com)

I do not know what I am wrong ,Because I could not pass this test.

Write a function isScalene(x, y, z) that accepts the 3 sides of a triangle as inputs. The function should return True if it is a scalene triangle. A scalene triangle has no equal sides.

Examples

>>> isScalene(2, 4, 3)
True
>>> isScalene(3, 3, 3)
False
>>> isScalene(0, 2, 3)
False
>>> isScalene(2, 2, 3)
False

My function define like this :

def isScalene(x, y, z): 
    if(x > 0 and y >0 and z> 0):
        if(x!=y!=z):
            return True
        else:
            return False
    else:
        return False

Could anyone give me a tip?

Answer 1

Try being more expressive, I suspect your x!=y!=z is the problem.

if ( ( x != y ) and ( x != z ) and ( y !=z ) )