python if

In Python, the if statement is used to create conditional logic. It allows you to execute a block of code only if a certain condition or expression is true. The basic syntax of an if statement in Python is as follows:

pythonCopy codeif condition:
    # Code to be executed if the condition is true

Here’s a more complete example:

pythonCopy codex = 10

if x > 5:
    print("x is greater than 5")

In this example, the if statement checks if the condition x > 5 is true. If it is true, the indented block of code below the if statement is executed, and “x is greater than 5” will be printed.

You can also include an else block to specify what should happen if the condition is false:

pythonCopy codex = 3

if x > 5:
    print("x is greater than 5")
else:
    print("x is not greater than 5")

In this case, because x is not greater than 5, the code in the else block will be executed, and “x is not greater than 5” will be printed.

Additionally, you can use the elif (short for “else if”) statement to check multiple conditions in a sequence:

pythonCopy codex = 3

if x > 5:
    print("x is greater than 5")
elif x == 5:
    print("x is equal to 5")
else:
    print("x is less than 5")

Here, the code checks multiple conditions in sequence and executes the block of code associated with the first true condition. If none of the conditions are true, the code in the else block is executed.

You can also nest if statements within each other to create more complex conditional logic.