I created a simultaneous loop by referring to this StackOverflow-page, like this:
s = '0123456789'
index = 5
for i, j in zip(range(index-1,-1,-1), range(index+1,len(s))):
print (s[i], s[j])
For the above code I get the following output:
4 6
3 7
2 8
1 9
But I need to break a loop if it's out of index and still continue the other loop, so for the above example I would like to get an output something like this:
4 6
3 7
2 8
1 9
0 None
And if I consider index as 3 I would like to get the output something like this:
2 4
1 5
0 6
None 7
None 8
None 9
Or if I consider index as 7 I would like to get the output something like this:
6 8
5 9
4 None
3 None
2 None
1 None
0 None
