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Conditional Statements in Python
course content

Course Content

Conditional Statements in Python

Conditional Statements in Python

1. Python if Statement
Introduction to if StatementSyntax of if StatementComparison OperatorsLogical OperatorsOperators PrecendenceChallenge: Simplify Fitness Tracker Logic
2. Python if-else Statement
Syntax of if-else StatementChallenge: Step Goal ProgressChallenge: Debug and Improve Hydration Reminder CodeConditional ExpressionChallenge: Check the Password
3. Python if-elif-else Statement
Introduction to if-elif-else StatementChallenge: Workout Duration TrackerChallenge: Debugging and Improving CodeChallenge: Progress Tracker

bookConditional Expression

In Python, sometimes we need to assign different values to a variable based on specific conditions. While this can be done using the standard if-else statement, there's a more compact and elegant way to achieve it—using a ternary operator, also known as a conditional expression. This allows us to write conditional logic in a single line of code.

The syntax for the ternary operator is as follows:

This syntax evaluates the condition, and if it's True, it assigns the true_value; otherwise, it assigns the false_value.

Example 1: Standard if-else Statement

Let's say we want to assign a fitness status to a user based on the number of steps they've walked.


              
123456789

            
steps_taken = 8500
status = ""

if steps_taken >= 10000:
    status = "Goal Reached"
else:
    status = "Keep Going"

print(status)
copy

Example 2: Using Ternary Operator

We can achieve the same result using the ternary operator in just one line:


              
1234

            
steps_taken = 8500
status = "Goal Reached" if steps_taken >= 10000 else "Keep Going"

print(status)
copy

When to Use:

The ternary operator is most effective when the condition is straightforward, and you're assigning values based on that condition. If the logic is more complex, it's better to stick with the full if-else statement to maintain clarity.

Task
test

Swipe to show code editor

You're building a fitness tracker app, and you need to remind the user if they've met their daily water intake goal. If the user has consumed enough water (more than or equal to 2 liters), congratulate them. If they haven't reached the goal, remind them to drink more.

Write the code using the ternary operator.

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 4
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bookConditional Expression

In Python, sometimes we need to assign different values to a variable based on specific conditions. While this can be done using the standard if-else statement, there's a more compact and elegant way to achieve it—using a ternary operator, also known as a conditional expression. This allows us to write conditional logic in a single line of code.

The syntax for the ternary operator is as follows:

This syntax evaluates the condition, and if it's True, it assigns the true_value; otherwise, it assigns the false_value.

Example 1: Standard if-else Statement

Let's say we want to assign a fitness status to a user based on the number of steps they've walked.


              
123456789

            
steps_taken = 8500
status = ""

if steps_taken >= 10000:
    status = "Goal Reached"
else:
    status = "Keep Going"

print(status)
copy

Example 2: Using Ternary Operator

We can achieve the same result using the ternary operator in just one line:


              
1234

            
steps_taken = 8500
status = "Goal Reached" if steps_taken >= 10000 else "Keep Going"

print(status)
copy

When to Use:

The ternary operator is most effective when the condition is straightforward, and you're assigning values based on that condition. If the logic is more complex, it's better to stick with the full if-else statement to maintain clarity.

Task
test

Swipe to show code editor

You're building a fitness tracker app, and you need to remind the user if they've met their daily water intake goal. If the user has consumed enough water (more than or equal to 2 liters), congratulate them. If they haven't reached the goal, remind them to drink more.

Write the code using the ternary operator.

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 4
toggle bottom row

bookConditional Expression

In Python, sometimes we need to assign different values to a variable based on specific conditions. While this can be done using the standard if-else statement, there's a more compact and elegant way to achieve it—using a ternary operator, also known as a conditional expression. This allows us to write conditional logic in a single line of code.

The syntax for the ternary operator is as follows:

This syntax evaluates the condition, and if it's True, it assigns the true_value; otherwise, it assigns the false_value.

Example 1: Standard if-else Statement

Let's say we want to assign a fitness status to a user based on the number of steps they've walked.


              
123456789

            
steps_taken = 8500
status = ""

if steps_taken >= 10000:
    status = "Goal Reached"
else:
    status = "Keep Going"

print(status)
copy

Example 2: Using Ternary Operator

We can achieve the same result using the ternary operator in just one line:


              
1234

            
steps_taken = 8500
status = "Goal Reached" if steps_taken >= 10000 else "Keep Going"

print(status)
copy

When to Use:

The ternary operator is most effective when the condition is straightforward, and you're assigning values based on that condition. If the logic is more complex, it's better to stick with the full if-else statement to maintain clarity.

Task
test

Swipe to show code editor

You're building a fitness tracker app, and you need to remind the user if they've met their daily water intake goal. If the user has consumed enough water (more than or equal to 2 liters), congratulate them. If they haven't reached the goal, remind them to drink more.

Write the code using the ternary operator.

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!

In Python, sometimes we need to assign different values to a variable based on specific conditions. While this can be done using the standard if-else statement, there's a more compact and elegant way to achieve it—using a ternary operator, also known as a conditional expression. This allows us to write conditional logic in a single line of code.

The syntax for the ternary operator is as follows:

This syntax evaluates the condition, and if it's True, it assigns the true_value; otherwise, it assigns the false_value.

Example 1: Standard if-else Statement

Let's say we want to assign a fitness status to a user based on the number of steps they've walked.


              
123456789

            
steps_taken = 8500
status = ""

if steps_taken >= 10000:
    status = "Goal Reached"
else:
    status = "Keep Going"

print(status)
copy

Example 2: Using Ternary Operator

We can achieve the same result using the ternary operator in just one line:


              
1234

            
steps_taken = 8500
status = "Goal Reached" if steps_taken >= 10000 else "Keep Going"

print(status)
copy

When to Use:

The ternary operator is most effective when the condition is straightforward, and you're assigning values based on that condition. If the logic is more complex, it's better to stick with the full if-else statement to maintain clarity.

Task
test

Swipe to show code editor

You're building a fitness tracker app, and you need to remind the user if they've met their daily water intake goal. If the user has consumed enough water (more than or equal to 2 liters), congratulate them. If they haven't reached the goal, remind them to drink more.

Write the code using the ternary operator.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 2. Chapter 4
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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