The iterator function(iter()) takes an iterable object and returns a iterator.And it will return one object at a time.
What is an iterable?
Anything such as a list, set,range or dict with a built-in protocol for visiting each element in a certain order is Iterable.
Example:x=[1,2,3,4,5]
y =iter(x)
y.next() #gives output 1
y.next() #gives output 2
till y.next() #gives output 5
after this it will throw StopIteration (error)
2.Iteration is a process implying iterables (implementing the __iter__() method) and iterators (implementing the __next__() method).
What is an iterable?
Anything such as a list, set,range or dict with a built-in protocol for visiting each element in a certain order is Iterable.
Example:x=[1,2,3,4,5]
y =iter(x)
y.next() #gives output 1
y.next() #gives output 2
till y.next() #gives output 5
after this it will throw StopIteration (error)
Important:
1.Iterators are implemented as classes.2.Iteration is a process implying iterables (implementing the __iter__() method) and iterators (implementing the __next__() method).
