Why doesn't my scalene triangle test work correctly?
<p>Checking Scalene Triangle ( I am learning from <a href="http://www.pyschools.com" rel="nofollow">http://www.pyschools.com</a>)</p>

<p>I do not know what I am wrong ,Because I could not pass this test.</p>

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

<p>Examples</p>

<pre><code>&gt;&gt;&gt; isScalene(2, 4, 3)
True
&gt;&gt;&gt; isScalene(3, 3, 3)
False
&gt;&gt;&gt; isScalene(0, 2, 3)
False
&gt;&gt;&gt; isScalene(2, 2, 3)
False
</code></pre>

<p>My function define like this :</p>

<pre><code>def isScalene(x, y, z): 
    if(x &gt; 0 and y &gt;0 and z&gt; 0):
        if(x!=y!=z):
            return True
        else:
            return False
    else:
        return False
</code></pre>

<p>Could anyone give me a tip?</p>
