Python Iterator Example

Chapter: Python Last Updated: 12-11-2021 14:20:54 UTC

Program:

            /* ............... START ............... */
                
person  = ("John", "james", "mathew")
entries = iter(person)

print(next(entries))
print(next(entries))
print(next(entries))

/* Output
John
james
mathew
*/

str = "Iterator"
entries = iter(str)

print(next(entries))
print(next(entries))
print(next(entries))
print(next(entries))
print(next(entries))
print(next(entries))

/* Output
I
t
e
r
a
t
*/

mytuple = ("apple", "banana", "cherry")

for x in mytuple:
  print(x)
/*Output

apple
banana
cherry
*/
                /* ............... END ............... */
        

Notes:

  • Python Iterator is the object contains a certfain number of values. You can traverse the iterator and get all the values.
  • In python we use two function to process iterator , ie. __iter__() and __next__().
  • iter() method which is used to get an iterator and next () function is used to print the next entries.
  • Python iterator is an object that can be iterated and printe all the values in it.
  • You can also use for loop to iterate through an iterable object, please refer program for more information.
  • If the iterator object is string array, it will print all strings in array.
  • If the iterator contains only one string only, then next will print each character wise.
  • Instead of using Iterator you can also use for loop to print all the entries.
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