Conditional Statements
Types of Conditional Statements in Python

Conditional Statements

Conditional statements control the flow of your Python code by executing different actions based on specified conditions. They’re fundamental for building decision-making in programs, making them crucial for writing logical and efficient Python code.

Types of Conditional Statements in Python

1. `if` Statement

The if statement executes a block of code only if a specified condition is True. If the condition is False, the block will not execute.

Syntax of the `if` statement:

if condition:
# Code to execute if condition is true

Example:

age = 18
if age >= 18:
    print("You are eligible to vote.")

Output:

You are eligible to vote.

2. `if-else` Statement

The if-else statement expands on the if statement by adding an alternate block of code if the condition is False.

Syntax of if-else:

if condition:
    # Code if condition is true
else:
    # Code if condition is false

Example:

score = 50
if score >= 60:
    print("Passed")
else:
    print("Failed")

Output:

Failed

3. Nested `if-else` Statement

A nested if-else is when an if-else block is placed inside another if-else block. This allows you to create more complex conditions.

Example:

number = 15
if number > 10:
    if number < 20:
        print("Number is between 10 and 20")
    else:
        print("Number is 20 or more")
else:
    print("Number is 10 or less")

Output:

Number is between 10 and 20

4. `if-elif-else` Statement

The if-elif-else ladder provides multiple conditions to check sequentially. Once a condition is found True, the corresponding block is executed, and the rest are bypassed.

Example:

day = "Wednesday"

if day == "Monday":
    print("Start of the work week")
elif day == "Wednesday":
    print("Midweek")
elif day == "Friday":
    print("End of the work week")
else:
    print("It's the weekend!")

Output:

Midweek

5. Ternary Expression (Conditional Expression)

The ternary expression allows you to write a conditional statement in a single line. It’s ideal for simple conditions that can be concisely expressed.

Syntax:

value_if_true if condition else value_if_false

Example:

x, y = 5, 10
result = "x is greater" if x > y else "y is greater or equal"
print(result)

Output:

y is greater or equal

Contents

Conditional Statements