World's Best AI Learning Platform with profoundly Demanding Certification Programs
Designed by IITians, only for AI Learners.
Download our e-book of Introduction To Python
Related Blog
Top Discussion
USA(+256704300651)Top Powerful Love Spells That Really Work By Powerful Revenge Spell Caster in# Canada, #Australia #,UK,//USA Black magic IN >@>USA,/ UK,/ Kuwait,/ Germany, +256704300651 == WASHINGTON DC// TOP DEATH SPELLS @POWERFUL REVENGE DEATH SPELL CASTER IN USA,CANADA, UK, CALIFONIA, MEXICO, IRELAND, NY, CANADA, LONDON, SWEDEN, BOTSWANA How can I write Python code to change a date string from "mm/dd/yy hh: mm" format to "YYYY-MM-DD HH: mm" format? +256704300651- Psychic lost love Spell Caster // Divorce Spell // Marriage Proposal ((+256704300651}} INSTANT DEATH SPELL CASTER / REVENGE SPELL/ VOODOO A SPELL CASTER/╬ ₩௹]+256704300651₩௹]╬MAMA ZAMIE A TRADITIONAL HEALER /SANGOMA AND A SPIRITUAL HEALER in BELGIUM, Exception Type: JSONDecodeError at /update/ Exception Value: Expecting value: line 1 column 1 (char 0) +256704300651 NY ( ITALY /UK/ SWEDEN/USA )) Black Magic Instant Death Spell Caster Lubbock Join Discussion
Top Courses
Master's In Artificial Intelligence Job Guarantee Program
4.5 (1,292 Ratings)
559 Learners
Webinars
Why You Should Learn Data Science in 2023?
Jun 8th (7:00 PM) 289 Registered
Python Design Patterns - Iterator
Neha Kumawat
3 years ago
The iterator design pattern falls under the behavioral design patterns category. Developers come across the iterator pattern in almost every programming language. This pattern is used in such a way that it helps to access the elements of a collection (class) in a sequential manner without understanding the underlying layer design.
How to implement the iterator pattern?
We will now see how to implement the iterator pattern.
import time
def fib():
a, b = 0, 1
while True:
yield b
a, b = b, a + b
g = fib()
try:
for e in g:
print(e)
time.sleep(1)
except KeyboardInterrupt:
print("Calculation stopped")
Output
The above program generates the following output −
If you focus on the pattern, the Fibonacci series is printed with the iterator pattern. On forceful termination of user, the following output is printed −
Explanation
This python code follows the iterator pattern. Here, the increment operators are used to start the count. The count ends on forceful termination by the user.