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Conditional Statments

Conditional Statements

If statement​

There are many cases in programming when we might want to run a block of code if a condition is true and a different one if the condition is false. By using the if keyword in Python we can provide a logical condition. If the condition evaluates to true, the corresponding code block is run; however, if the condition is false the code block is ignored.

# Basic if Statement
if 5 > 1:
    print("5 is greater than 1")

if 1 > 5:
    print("1 is greater than 5")

You can examine that only the first print statement is run since the second if statement was evaluated to false.

Else Clause​

When using the else keyword, this code block is evaluated when the if condition is false

# Basic if-else Statement
if 1 > 5:
    print("1 is greater than 5")
else:
    print("5 is greater than 1")

Elif Clause​

You can use elif statements to provide an additional condition aside from the if statement. You can use as many elif statemetns as you wish.

# Basic if-elif-else Statement
if 4 > 4::
    print("4 is greater than 4")
elif 4 == 4:
    print("4 is equal to 4")
else:
    print("4 is greater than 4")