Python supports the usual logical conditions from mathematics: These conditions can be used in several ways, most commonly in "if statements" and loops. An "if statement" is written by using the if keyword. 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.

In computer programming, we use the if statement to run a block of code only when a specific condition is met. In this tutorial, we will learn about Python if...else statements with the help of examples.

Mar 3, 2022 · In Python, if statements are a starting point to implement a condition. Let’s look at the simplest example: if <condition>: <expression> When <condition> is evaluated by Python, it’ll become either True or False (Booleans).

Aug 20, 2015 · In Python indentation matters, your code should look like this: if condition1: reaction1() . elif condition2: reaction2() else: deafult_reaction() I recommend reading the chapter about indentation in Dive Into Python as well as PEP 0008. if num % 2 == 0: print("entered variable is even") else: . print("entered variable is odd") – B. Go.

Mar 8, 2025 · If…Else statement allows to execution of specific blocks of code depending on the condition is True or False. if statement is the most simple decision-making statement. If the condition evaluates to True, the block of code inside the if …

In Python the if statement is used for conditional execution or branching. An if statement is one of the control structures. (A control structure controls the flow of the program.) The if statement may be combined with certain operator such as equality (==), greater than (>=), smaller than (<=) and not …

Mar 7, 2025 · Below is the flowchart by which we can understand how to use if-else statement in Python: In this example, the code assigns the value 3 to variable x and uses an if..else statement to check if x is equal to 4. If true, it prints “Yes”; otherwise, it prints “No,” demonstrating a conditional branching structure.

Python uses the if keyword to implement decision control. Python's syntax for executing a block conditionally is as below: Any Boolean expression evaluating to True or False appears after the if keyword. Use the : symbol and press Enter after the expression to …

Apr 4, 2025 · If statement is the simplest form of a conditional statement. It executes a block of code if the given condition is true. Example: age = 20 if age >= 18: print("Eligible to vote.") Eligible to vote. Short-hand if statement allows us to write a single-line if statement. Example: age = 19 if age > 18: print("Eligible to Vote.") Eligible to Vote.

You use the if statement to execute a block of code based on a specified condition. The syntax of the if statement is as follows: if -block Code language: Python (python) The if statement checks the condition first. If the condition evaluates to True, it executes the statements in the if-block. Otherwise, it ignores the statements.