When you are programming in Python, you often have to make decisions in your code about certain conditions. That is where conditional statements help. One keyword that is very important in Python’s conditional statements is elif. In this blog, we will discuss what is elif and how to use it.
Table of Contents
What is a Conditional Statement?
With the help of conditional statements in Python, we can run different pieces of code depending on whether certain conditions are true or false. If is the most basic conditional statement in Python, which checks the condition first and then runs the code if the condition is true.
Example:
Output:
x is greater than 5
Here, x is 10 which is greater than 5, which makes the condition true. So, it will print “x is greater than 5” as shown in the above output.
But if you have more than one statement, then an elif statement will be used.
What Does elif Mean?”>
What Does elif Mean?
The keyword elif stands for “else if.” It’s used to check multiple conditions in a sequence. After an if statement, you can use elif to check additional conditions. Each elif statement only runs if the previous conditions are false.
For example, let’s say you want to check if a number is positive, negative, or zero. You can use elif to check for multiple conditions:
Example
In this example:
- If x is greater than 0, it will print “x is positive.”
- If x is less than 0, it will print “x is negative.”
- If neither of those is true, it will print “x is zero.”
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Why Use elif?
Instead of checking each condition with separate if statements, you can use elif to make your code easier to read and more organized. It helps you check different conditions in order without needing a lot of complicated code.
Example with elif
Let’s say you want to give grades based on a student’s score. Here’s how you might do it using elif:
Example:
In this example:
- If the score is 90 or more, it will print “Grade: A.”
- If the score is 80 or more (but less than 90), it will print “Grade: B.”
- If the score is 70 or more (but less than 80), it will print “Grade: C.”
- If the score is 60 or more (but less than 70), it will print “Grade: D.”
- If none of the conditions are true, it will print “Grade: F.”
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How Does It Work?
Python checks the conditions one by one:
- First, it checks if the score >= 90. If it’s true, it prints “Grade: A” and stops.
- If the first condition is false, it checks a score >= 80. If that’s true, it prints “Grade: B” and stops.
- If both of the above conditions are false, it checks the next condition, and so on.
Once it finds a true condition, Python stops checking the rest.
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Conclusion
So far in this article, we learned about conditional statements such as if and elif. It helps us to check the different cases one by one without writing a lot of unorganized code. With the help of elif, you can make your code easier to understand and more organized, even if your code contains multiple conditions. If you want to learn more about conditional statements and operators in Python, check out Intellipaat’s Python course.
The below resources provide a solid foundation in Python, covering key concepts, syntax, and basic operators.
Magic Method in Python – Learn about magic methods in Python through clear examples.
Break and Continue – Discover how break and continue work in Python, illustrated with helpful examples.
Python Reserved Words – Covers Python reserved words and demonstrates their use with examples.
Python Interactive Mode Chevron – Overview of Python’s interactive mode and chevron prompt with real-world examples.
Global Variable in Function – Explore how global variables behave inside functions in Python, with detailed examples.
Python Yield Keyword – Understand the yield keyword in Python and how it functions, supported by sample code.
Python Tuple – Take a closer look at tuples in Python, with explanations and practical examples.
Set Attribute Error – Learn what causes a setattr error in Python and how to handle it, using examples.
2D Array Input – See how to take input for a 2D array in Python through easy-to-follow examples.
