Python beginner, strange output problem
<p>I'm having a weird problem with the following piece of code.</p>

<pre><code>from math import sqrt

def Permute(array):
    result1 = []
    result2 = []
    if len(array) &lt;= 1:
        return array
    for subarray in Permute(array[1:]):
        for i in range(len(array)):
            temp1 = subarray[:i]+array[0]+subarray[i:]
            temp2 = [0]
            for num in range(len(array)-1):
                temp2[0] += (sqrt(pow((temp1[num+1][1][0]-temp1[num][1][0]),2) + pow((temp1[num+1][1][1]-temp1[num][1][1]),2)))
            result1.append(temp1+temp2)
    return result1

a = [['A',[50,1]]]
b = [['B',[1,1]]]
c = [['C',[100,1]]]
array = [a,b,c]

result1 = Permute(array)
for i in range(len(result1)):
    print (result1[i])
print (len(result1))
</code></pre>

<p>What it does is find all the permutations of the points abc and then returns them along with the sum of the distances between each ordered point. It does this; however, it also seems to report a strange additional value, 99. I figure that the 99 is coming from the computation of the distance between point a and c but I don't understand why it is appearing in the final output as it does.</p>
