if else conditional operator¶

Description¶

Returns either value depending on the result of a Boolean expression.

Syntax¶

A if expression else B

A: The value for the entire conditional expression if the condition is True.
expression: The condition that evaluates to a Boolean.
B: The value for the entire conditional expression if the condition is False.

Return Value¶

The same as passed to the expression.

Time Complexity¶

#TODO

Remarks¶

Python’s conditional operator is similar to the if else statement. It is also called a ternary operator since it takes three operands (as opposed to binary operands like +, - or unary ones like ~).

Example 1¶

>>> 1 if True else 0
1
>>> 1 if False else 0
0

Example 2¶

>>> rating = 100
>>> 'good' if rating > 80 else 'bad'
'good'

The above expression returns ‘good’ if rating is greater than 80 and ‘bad’ otherwise.

Note that conditional operator does not allow the use of statements:

Example 3¶

>>> print 'good' if rating > 80 else print 'bad'
  File "<interactive input>", line 1
    print 'good' if rating > 80 else print 'bad'
                                         ^
SyntaxError: invalid syntax