Python If Statement Examples

An if statement doesn't need to have a single statement, it can have a block. A block is more than one statement. The example below shows a code block with 3 statements print. A block is seen by Python as a single entity, that means that if the condition is true, the whole block is executed every statement.

Learn how to use the ifelse statement in Python to execute a block of code based on a condition. See syntax, examples, indentation, nested if, compact if, ternary operator and logical operators.

Examples 1. Simple example for If statement. In this example, we will use a simple boolean expression formed with relational operator, less than, for the if statement condition. The statementss inside the if block is just a single print statement. Python Program a 2 b 5 if altb printa, 'is less than', b Explanation

In this example we use two variables, a and b, which are used as part of the if statement to test whether b is greater than a. As a is 33, and b is 200, we know that 200 is greater than 33, and so we print to screen that quotb is greater than aquot. Indentation. Python relies on indentation whitespace at the beginning of a line to define scope in

Python if Statement Syntax. if condition Statements to execute if condition is true. Flowchart of if Statement in Python. Below is the flowchart by which we can understand how to use if statement in Python Example Basic Conditional Check with if Statement. In this example, an if statement checks if 10 is greater than 5. If true, it prints

In the form shown above ltexprgt is an expression evaluated in a Boolean context, as discussed in the section on Logical Operators in the Operators and Expressions in Python tutorial. ltstatementgt is a valid Python statement, which must be indented. You will see why very soon. If ltexprgt is true evaluates to a value that is quottruthyquot, then ltstatementgt is executed.

if condition statements elif condition statements else statements. In this article, let's look at various examples of using if-else statements in Python. I hope you will be able to understand the working of conditional statements by going through these examples. Let's dive right in. 1. Example of using if-else ladder in Python

Code language Python python Try it. In this example, if you enter a number that is greater than or equal to 18, you'll see two messages. In this example, indentation is very important. Any statement that follows the if statement needs to have four spaces. If you don't use the indentation correctly, the program will work differently

For these purposes, Python provides the following constructs 1. If statements. 2. If-else statements. 3. Elif ladders. 4. Nested if-else statements. We will discuss each of them with examples in the following sections of this article. Python If statements. If statements take an expression, which is the condition it checks.

Learn how to use if, else, elif, and logical operators to create conditional statements in Python. See examples of basic and complex if statements, and how to apply them to lists and loops.