a=[]
for ne, naa in zip(ne, naa): 
   de+=distance.euclidean(naa,ne)
a.append(de/size_batch)
print(*a, sep = ", ")

I wanted to put all data inside the array, and print whats inside it.
I think the array is overwriting, and its stuck on the first position. How can i store all values in this array?
I tried this to:
v=0
a.insert(v,de/size_batch)
++v

And i get the same result.
The output is just a value and not all the values.
Can someone help me?