how do i produce outcomes between number using if statements in pyth code example

Example 1: if statements with true or false statements in python 3

temperature = float(input('What is the temperature? '))
    if temperature > 70:
        print('Wear shorts.')
    else:
        print('Wear long pants.')
    print('Get some exercise outside.')

Example 2: create a function in python that takes a string and checks to see if it contains the following words or phrases:

prefixes = "JKLMNOPQ"
suffix = "ack"

for letter in prefixes:
    print letter + suffix