Python ‘if’

Python ‘if’:

In Python, the if statement is used for conditional execution. It allows you to specify a block of code to be executed if a certain condition is true.

The basic syntax of the if statement in Python is as follows:

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if condition:

    # code to be executed if condition is true

Here, condition is an expression that evaluates to either True or False. If the condition is true, the indented block of code following the if statement will be executed. If the condition is false, the block of code will be skipped, and execution will continue with the next statement after the if block.

You can also use the if statement with an optional else clause, which allows you to specify a block of code to be executed if the condition is false.

The syntax for the if-else statement is as follows:

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if condition:

    # code to be executed if condition is true

else:

    # code to be executed if condition is false

Here, if the condition is true, the block of code following the if statement will be executed. If the condition is false, the block of code following the else statement will be executed.

Additionally, you can chain multiple conditions using the elif (short for “else if”) statement. This allows you to check for multiple conditions and execute different blocks of code based on the results.

The syntax for the if-elif-else statement is as follows:

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if condition1:

    # code to be executed if condition1 is true

elif condition2:

    # code to be executed if condition2 is true

else:

    # code to be executed if both condition1 and condition2 are false

In this case, the conditions are evaluated in order, and the block of code associated with the first true condition is executed. If none of the conditions is true, the block of code following the else statement will be executed.