ifβ¦elifβ¦else
statement is used in Python for decision making.test expression
and will execute statement(s) only if the test expression is True
.False
, the statement(s) is not executed.if
statement is indicated by the indentation. The body starts with an indentation and the first unindented line marks the end.True
. None
and 0
are interpreted as False
.num > 0
is the test expression.if
is executed only if this evaluates to True
.if
are executed.if
are skipped.print()
statement falls outside of the if
block (unindented). Hence, it is executed regardless of the test expression.if..else
statement evaluates test expression
and will execute the body of if
only when the test condition is True
.False
, the body of else
is executed. Indentation is used to separate the blocks.if
is executed and the body
of else is skipped.else
is executed and the body of if
is skipped.if
is executed and body
of else is skipped.elif
is short for else if. It allows us to check for multiple expressions.if
is False
, it checks the condition of the next elif
block and so on.False
, the body of else is executed.if...elif...else
blocks is executed according to the condition.if
block can have only one else
block. But it can have multiple elif
blocks.if...elif...else
statement inside another if...elif...else
statement. This is called nesting in computer programming.