Why does the value of range(len(whole)/2) not change after whole is modified? And what do you call range(len...) value in for-loop?
whole = 'selenium'
for i in range(len(whole)/2):
print whole
whole = whole[1:-1]
output:
selenium
eleniu
leni
en
The range() produces a list of integers once. That list is then iterated over by the for loop. It is not re-created each iteration; that'd be very inefficient.
You could use a while loop instead:
i = 0
while i < (len(whole) / 2):
print whole
whole = whole[1:-1]
i += 1
the while condition is re-tested each loop iteration.
The range function creates a list
[0, 1, 2, 3]
And the for loop iterates over the value of the list.
The list is not recreated each and every time
But this is not the case in normal list
wq=[1,2,3]
for i in wq:
if 3 in wq:
wq.remove(3)
print i
1
2
