title: Input triangle sides's length and output triangle type. Doesn't work
body: <p>so, this is my code and python doesn't seem to run the lines in bold. Basically, it's a code where the user inputs the three lengths of the three triangle sides and it outputs the type of the triangle (equilateral, isosceles, scalene( that isn't working. Help me please) or right).</p>
  
  <pre><code>    x= input (" Length of side 1 =  ")
      y= input ("Length of side 2 =  ")
      z= input ("Length of side 3 = ")
  
      x= float (x)
      y= float (y)
      z= float (z)
  
      flag=0
  
      if x==y==z:
        print ("This is an equilateral triangle")
      flag=1
  
      if x&gt;y and x&gt;z and (x**2) == ((z**2) + (y**2)):
        print ("This is a right triangle")
      flag=1
  
      if z&gt;y and z&gt;x and (z**2) ==((x**2) + (y**2)):
       print ("This is a right triangle")
      flag=1
  
      if y&gt;z and y&gt;x and (y**2) == ((z**2) + (x**2)):
       print ("This is a right triangle")
      flag=1
  
      **if x!=z!=y and flag==0:
       print("This triangle is scalene")**
  
      if x==z and x!= y:
       print ("This triangle is isosceles")
  
      if x==y and x!= z:
       print ("This triangle is isosceles")
  
      if z==y and z!= x:
       print ("This triangle is isosceles")
  </code></pre>