# Chapter 2: Syntactic Aspects¶

## Example 1, Page number: 39¶

In :
# Calculation and result
class color() :
RED = 5
YELLOW = 6
GREEN = 4
BLUE = 5

print ('RED = %d ' % color.RED)
print ('YELLOW = %d ' % color.YELLOW)
print ('GREEN = %d ' % color.GREEN)
print ('BLUE = %d ' % color.BLUE)

RED = 5
YELLOW = 6
GREEN = 4
BLUE = 5


## Example 2, Page number: 41¶

In :
# Calculation and result
i = 2004
c = 'Year'

print ('%s %d' % (c, i))

Year 2004


## Example 2.1, Page number: 44¶

In :
# Calculation and result
num = 5
c = '$' pi = 3.141 print ('Hello World') print ('%d %c %f' % (num, c, pi))  Hello World 5$ 3.141000


## Example 2.2, Page number: 45¶

In :
# Calculation and result
num = int(raw_input('Enter your favorite number '))
print ('You have entered your favorite number as %d ' % num)

Enter your favorite number 3
You have entered your favorite number as 3


## Example 2.3, Page number: 60¶

In :
# Calculation and result
fahrenheit = float(raw_input('Please enter the Fahrenheit temperature '))

centigrade = float(5)/9 * (fahrenheit - 32)

print ('The temperature in Centigrade is %.2f ' % centigrade)

Please enter the Fahrenheit temperature 100
The temperature in Centigrade is 37.78