Python else Statement
What Is the else Keyword?
The else keyword in Python defines a default block of code that runs when all preceding conditions fail.
If none of the if or elif expressions evaluate to True, Python automatically executes the else block.
Basic Usage of else
Example: Comparing Two Values
Explanation:
• The if condition fails
• The elif condition also fails
• Python executes the else block as the final option
Using else Without elif
An else statement can directly follow an if when you only need a yes-or-no decision.
Example: Simple Condition Check
Explanation:
• If the condition is true, the first block runs
• Otherwise, the else block executes
How the else Statement Works
• Python evaluates conditions from top to bottom
• If no condition matches, else is triggered
• else must always be placed at the end
• No elif can appear after else
Example: Even or Odd Number Check
Why this works:
• The condition checks for odd numbers
• else handles the remaining even cases automatically
Complete if–elif–else Structure
Combining if, elif, and else allows you to handle multiple exclusive outcomes in a clean and readable way.
Example: Weather Status Program
else as a Fallback Mechanism
The else block is commonly used as a safety net for:
• Input validation
• Error handling
• Default responses
