Python inter() basically creates an iterator object, which can be used to iterate on iterables. Let's try to understand what it is iterator and iterables. Iterator − An iterator is an object that contains a countable number of values which can be iterated on iterables. Iterables: An iterables is basically a collections of data types such as list, tuple or string.
object − Required. An iterable object
sentinel − Optional. If the object is a callable object the iteration will stop when the returned value is the same as the sentinel
The iterator object uses the __next__() method. Every time it is called, the next element in the iterator stream is returned.
list1 =[10, 20] valuesL1 = iter(list1) valuesL1.__next__() //10 valuesL1.__next__() //20
next() Calling __next__() method everytime is tedioud, so we will be using built-in function next() which accepts an iterato r object as a parameter and calls the __next__() method internally. This next() can be used instead of __next__()
list1 =[10, 20] valuesL1 = iter(list1) next(valuesL1) //10 next(valuesL1) //20