Hello Rodrigo,
> >>> a = range(8)
> >>> for b in a:
> if b == 4:
> a.remove(b)
> else:
> print b
try:
a = range(8)
for b in list(a): # Iterate over a shallow copy
if b == 4:
a.remove(b)
else:
print b
0
1
2
3
5
6
7
HTH.
Miki