in " for I in range (5)" what do you mean by"i"? who defined this?

Question

do we have to define it? and what if multiple ranges exist in the programme?

Answer 1

@Yuktee Gutta

'i' is a temperory variable or placeholder we create inorder to access it within a loop you don't need to declare it actually you are declaring it in for loop itself

for i in range(5):
print(i)

It is not compulsory to give only 'i'
you can use anything you want

example

for nums in range(5):
print(nums)

Answer 2

The "I" is a variable that hold the value and iterate our program. It is just a convention i.e. we can use any identifier or any character for the same.