Python If Elif Else Conditions

In python programming we need to test conditions and implement specific block of code for this we need python if elif else conditional statements.

Python’s conditional statements are used to make decisions based on the value of one or more conditions. There are two main types of conditional statements in Python: if and if-else.

Python also supports the use of if-elif-else statements, which allow for multiple conditions to be checked.

Let us consider a scenario where you need to test a condition and based on which you need to move forward into making a decision.

In this scenario we make use of python if elif else conditions if the condition is True then we will implement true block of code else we will implement false block of code.

Python If Elif Else Video Tutorial :

Go through the below tutorial for detailed implementation of if elif else conditions.

If Else :

This if else condition is almost used in every programming language and is much useful to guide the flow of app.

If will be provided with a condition stating the requirement to be satisfied and once done the block of code specified get’s implemented.If the condition is not satisfied then else block is executed.

It is a good practice to provide else block every time so as to address the failure condition.

Let us consider a scenario you need to provide result to student based on his marks.Using if else we will classify the student and print statement.

marks = 50 

if marks > 35:
   print("You have passed")

Output :

You have passed

Now let’s try to fail the condition i.e., provide less marks and try to observe the output

marks = 5 

if marks > 35:
   print("You have passed")

Output :

5 is less than 35. Nothing is printed as condition failed and false block is not specified.

Now add else to handle false condition too and print statement accordingly.

marks = 5 

if marks > 35:
   print("You have passed")
else
   print("you have failed")

Output :

You have failed

Elif ???:

elif is a keyword in Python that stands for “else if”. It is used to add additional conditions to an if statement.

What is Elif condition you might not have heard about it in any other programming language. It’s nothing new but else if condition.

elif can be used multiple times in a single if statement to add additional conditions to be checked. When you want to add multiple conditions to if else block we make use of elif in python.

Now try to observe it’s implementation even.

marks = 75 

if marks > 70:
   print("You have passed in distinction")
elif marks > 35
   print("You have passed")
else
   print("you have failed")

Output :

You have passed in distinction

Usage :

Python conditional statements are used to execute different blocks of code based on whether a condition is true or false. The two most commonly used conditional statements in Python are the if statement and the if-else statement.

Python also supports the elif statement, which allows you to chain multiple conditions together.

The usage of elif is when ever if condition is passed it will skip all the remaining steps and execute if block of code.

When you don’t specify elif block and use multiple if conditions then unwanted output may arise.And also accurate results may not be found.

So it’s best practice to use elif condition if you have multiple conditions to be tested.

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Python If Elif Else :