A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string).
We mainly use loops for repeating the same code or function several numbers of times.
Types of Loop
There are the 2 types of loops in Python.
for loop
for loop used to iterating over a sequence.
syntax:
for item in sequence:
your_code(item)
we can use ‘else‘ statement with both ‘while‘ and ‘for‘ loop
EXAMPLE:
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sat May 29 10:01:56 2021
@author: mycloudplace
"""
def main():
name = "prem"
for s in name:
print(s, end=" ")
else:
print("")
print("outside of for loop")
print("Using range function to print sequence")
for i in range(2,22,2):
print(i, end=" ")
if __name__ == "__main__":
main()
OUTPUT:
p r e m outside of for loop Using range function to print sequence 2 4 6 8 10 12 14 16 18 20
while loop
while loop keep executing a block of code until the given condition true.
EXAMPLE: Printing the multiplication table using both ‘for’ and ‘while’ loop.
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sat May 29 10:01:56 2021
@author: mycloudplace
"""
def main():
table_list = [11,12,13,14,15]
print("Below are the Multiplication Table by using 'while' and 'for' loop")
i=1
while (i <= 10):
for num in table_list:
print((num * i), end="\t")
print("")
i+=1
if __name__ == "__main__":
main()
OUTPUT:
Below are the Multiplication Table by using 'while' and 'for' loop 11 12 13 14 15 22 24 26 28 30 33 36 39 42 45 44 48 52 56 60 55 60 65 70 75 66 72 78 84 90 77 84 91 98 105 88 96 104 112 120 99 108 117 126 135 110 120 130 140 150
‘break’ and ‘continue’ Statements
break statement is used to breaks out of the innermost for or while loop.
continues statement is used to continues with the next iteration of the loop.
EXAMPLE: Finding the first n (can be any positive integer) prime numbers.
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sat May 29 10:01:56 2021
@author: mycloudplace
"""
def main():
prime_number_count = 50
print("First " + str(prime_number_count) + " prime numbers")
prime_numbers = [] #empty list of prime numbers
num = 2
while (len(prime_numbers) <= prime_number_count):
is_prime = True
for x in range(2, num):
if (num % x == 0):
is_prime = False;
break;
if is_prime:
prime_numbers.append(num)
num+=1
print(prime_numbers)
if __name__ == "__main__":
main()
OUTPUT:
First 50 prime numbers [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233]
Our Previous articles
http://mycloudplace.com/python-data-types-with-examples/
Python – installation indentation variable comments
Python Programming Introduction
Python Office Site : https://docs.python.org/3/tutorial/index.html
Good day! This post could not be written any better!
Reading this post reminds me of my good old room mate!
He always kept chatting about this. I will forward this article to
him. Pretty sure he will have a good read.
Many thanks for sharing!
I like the valuable info you provide for your articles.
I will bookmark your weblog and test again here
frequently. I am reasonably sure I will be informed plenty of new stuff right right here!
Good luck for the next!
Peculiar article, exactly what I needed.
Hello There. I found your blog using msn. This is an extremely well written article.
I’ll make sure to bookmark it and come back to read more of your useful information. Thanks for the post.
I will certainly return.
It’s very effortless to find out any topic on net as compared to textbooks, as I found this article at
this site.
Informative article, exactly what I was looking for.
Pretty nice post. I just stumbled upon your blog and wanted to say that I’ve really enjoyed surfing around your weblog posts.
After all I will be subscribing to your feed and I’m hoping you write again soon!
Sweet blog! I found it while searching on Yahoo News.
Do you have any suggestions on how to get listed in Yahoo News?
I’ve been trying for a while but I never seem to get there!
Thanks
Have you ever thought about publishing an ebook or guest authoring on other websites?
I have a blog based upon on the same topics you discuss and would love
to have you share some stories/information. I know my subscribers would enjoy your work.
If you’re even remotely interested, feel free to shoot me an email.
Welcome to our Minions The Rise Of Gru Movie Moments Mixed Up special deal.
If some one wants expert view about blogging then i propose him/her to pay a quick visit this website,
Keep up the good job.
Very nice post. I just stumbled upon your weblog and wished to say that I have
really enjoyed browsing your blog posts. After all I’ll be subscribing to your rss
feed and I hope you write again soon!
Hey There. I found your blog using msn. That is a really
neatly written article. I will be sure to bookmark it and return to learn extra of
your useful info. Thank you for the post. I will certainly comeback.
hi!,I really like your writing so much! share we keep in touch more about your article
on AOL? I need an expert on this area to resolve my problem.
Maybe that’s you! Taking a look forward to look you.
This post will assist the internet visitors for setting
up new blog or even a weblog from start to end.
Hi, I do believe this is an excellent blog.
I stumbledupon it 😉 I will revisit yet again since i have bookmarked it.
Money and freedom is the best way to change, may you be rich and continue to help others.
You actually reported it wonderfully.
Thank you.
Hello to every , because I am truly keen of reading this weblog’s post to be updated on a
regular basis. It contains fastidious stuff.
Thank you.
What’s up everyone, it’s my first visit at this web page,
and paragraph is actually fruitful designed for me,
keep up posting these articles or reviews.
Thank you.
Excellent post. Keep writing such kind of information on your blog.
Im really impressed by your blog.
Hi there, You have done an incredible job. I’ll definitely digg it and in my view recommend to my friends.
I’m confident they will be benefited from this website.
Wonderful post! We are linking to this particularly great post
on our site. Keep up the good writing.
Thanks for the auspicious writeup. It in reality used to be a leisure account it.
Look advanced to far introduced agreeable from you!
By the way, how can we keep up a correspondence?
it is best contents, like, will visit this web site everyday because it offers feature contents, thanks
Thank you.
When some one searches for his required thing, thus
he/she needs to be available that in detail,
thus that thing is maintained over here.
Thank you.
I just could not leave your website before suggesting
that I really loved the standard information a person provide for your visitors?
Is going to be again ceaselessly in order to
check up on new posts. Thanks for information on python.
Thank you
Hello, its good paragraph concerning programming language, we all be familiar with this is a great source
of facts.
Thank you.
Good site you have here.. It’s hard to find high-quality writing like yours nowadays.
I seriously appreciate people like you! Take care!!
Thank you.
Hello, I desire to subscribe for this web site to take most up-to-date updates,
thus where can i do it please assist.
Thank you for writing, subscription is not available for now.
Write more, thats all I have to say. Literally, it seems as though you
relied on the video to make your point. You obviously know what youre talking about, why throw
away your intelligence on just posting videos to your weblog when you could be giving us
something informative to read?
I used to be able to find good advice from your content.