What does 'iter' do in python? What is its function

Answer 1

iter is an objects that iterates over a Collection (tuple dict list) or string etc

tup = ("firstElement", "secondElement", "thirdElement")

myIterObject = iter(tup)

print(next(tup))
print(next(tup))
print(next(tup))

next method is used to iterate over it

Works with strings too

str = "sololearn"

myIter = iter(str)

print(next(str)
print(next(str)
print(next(str)
print(next(str)

Output:
sol

Answer 2

iter() takes an iterable object (such as a list, string, etc) as parameter, and returns an iterator.
You can imagine it as a pointer that loops through each value of a collection. Using iterators is memory-efficient because it doesn't copy the whole collection, just works with a single element at a time.
https://www.geeksforgeeks.org/JUMP_LINK__&&__python__&&__JUMP_LINK-difference-iterable-iterator/

Answer 3

Thank you