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Please enable JavaScript in your browser settings or update your browser.The else Statement in a while Loop | The while Loop
Python Loops Tutorial
course content

Course Content

Python Loops Tutorial

Python Loops Tutorial

1. The for Loop
The First for LoopIterating with range() FunctionChallenge: Exploring Steps and Reverse with range()The if/else Statements in a for LoopCounting with LoopsLoop Control StatementsThe else Statement in a for LoopThe enumerate() FunctionChallenge (del)
2. The while Loop
The First while LoopInfinite LoopUsing Condition Statements in a while LoopLoop Control Statements in a while LoopThe else Statement in a while LoopChoosing Between for and while Loops in Python
3. Nested Loops
Nested for LoopNested while LoopIf/Else in a Nested LoopBreak/Continue in a Nested LoopNested for Loop 2 (del)While Loop inside a for Loop (del)Challenge (del)

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The else Statement in a while Loop

In Python, the else block can be added to a while loop. The else block executes when the loop terminates normally, meaning the loop condition becomes False without encountering a break statement.


              
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travel_list = ["Monako", "Luxemburg", "Liverpool", "Barcelona", "Munchen"]

# Initialize index
i = 0

# Iterate through the destinations
while i < len(travel_list):
    print(travel_list[i])
    i += 1
else:
    print("All destinations have been listed!")
copy

Example: Breaking the Loop

If the loop terminates with a break statement (e.g., when a specific city is found), the else block does not execute.


              
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# List of travel destinations
travel_list = ["Monako", "Luxemburg", "Liverpool", "Barcelona", "Munchen"]

# Initialize index
i = 0

# Search for a specific destination
while i < len(travel_list):
    if travel_list[i] == "Barcelona":
        break
    print(travel_list[i])
    i += 1
else:
    print("All destinations have been listed!")  # This won't execute if break is triggered.
copy
Task
test

Swipe to show code editor

Imagine planning your travel within a fixed budget. This program dynamically calculates and prints the cost of each trip as long as your budget allows. Once the budget is exhausted, the else statement provides a closing message confirming that all affordable trips have been planned.

This program demonstrates how to use the else block with a while loop effectively.

Expected Output:

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Section 2. Chapter 5
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book
The else Statement in a while Loop

In Python, the else block can be added to a while loop. The else block executes when the loop terminates normally, meaning the loop condition becomes False without encountering a break statement.


              
1234567891011

            
travel_list = ["Monako", "Luxemburg", "Liverpool", "Barcelona", "Munchen"]

# Initialize index
i = 0

# Iterate through the destinations
while i < len(travel_list):
    print(travel_list[i])
    i += 1
else:
    print("All destinations have been listed!")
copy

Example: Breaking the Loop

If the loop terminates with a break statement (e.g., when a specific city is found), the else block does not execute.


              
1234567891011121314

            
# List of travel destinations
travel_list = ["Monako", "Luxemburg", "Liverpool", "Barcelona", "Munchen"]

# Initialize index
i = 0

# Search for a specific destination
while i < len(travel_list):
    if travel_list[i] == "Barcelona":
        break
    print(travel_list[i])
    i += 1
else:
    print("All destinations have been listed!")  # This won't execute if break is triggered.
copy
Task
test

Swipe to show code editor

Imagine planning your travel within a fixed budget. This program dynamically calculates and prints the cost of each trip as long as your budget allows. Once the budget is exhausted, the else statement provides a closing message confirming that all affordable trips have been planned.

This program demonstrates how to use the else block with a while loop effectively.

Expected Output:

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 2. Chapter 5
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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