"While loops in Python are like a broken record ๐. They keep playing the same song until the condition is false. It’s like hitting the snooze button โฐ – you keep sleeping until the alarm stops. In Python, while loops are like a never-ending party ๐ฅณ that stops when the cops ๐ฎโโ๏ธ show up. They’re perfect for printing ‘hello world’ 5โฃ times or finding even numbers! ๐"
Introduction: What are Loops in Python?
In programming, Loops are used to repeat a block of statements multiple times based on certain conditions. There are two types of Loops in Python – while loop and for Loop.
Understanding While Loop in Python ๐
The while loop executes a block of statements as long as the specified condition is true. Once the condition becomes false, the loop stops execution.
| Syntax |
|---|
| “`python |
| while condition:
| # Code block to execute
| else:
| # Code block for completion
| “`
Example of Using While Loop
Let’s say we want to print "hello" 5 times using a while loop.
counter = 1
while counter <= 5:
print("Hello")
counter += 1
else:
print("Program completed")
The output of this code will be:
Hello
Hello
Hello
Hello
Hello
Program completed
Finding Even Numbers using While Loop
Another example would be finding even numbers between 1 and 10 using a while loop as shown below:
count = 1
while count <= 10:
if count % 2 == 0:
print(count)
count += 1
The output of this code will be:
2
4
6
8
10
Conclusion
In this tutorial, we have covered the concept of while loops in Python. We have also seen how to use while loops to repeat certain actions and how the else statement works with while loops. We hope this tutorial was helpful for beginners in Python. Stay tuned for more tutorials and don’t forget to like and subscribe! ๐
Key Takeaways
- While loops are used to execute a block of code repeatedly based on a condition.
- The else statement can be used to define a block of code that will be executed once the loop is completed.
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