# tuples

# A tuple is an immutable list. You can not add, remove or modify its values after creating it. 
# Tuples are often used to group together related values, such as coordinates, address lines, ...
# Tuples are defined like lists but instead of square brackets, values are enclosed in parentheses 


# create a tuple:

red = (255, 0, 0)      # creates a tuple named red that hold the values 255,0,0
print red              # prints (255, 0, 0)

weekdays = ("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun") 
print weekdays      # prints ("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun")




# turn a tuple into individual variables:
# If you know that your variable holds a tuple, you can easily unpack its values back to individual variables. 

r, g, b = red 
print r           # prints 255
print g           # prints 0
print b           # prints 0

one, two, three, four, five, six, seven = weekdays 
print one           # prints "Mon" 
print two           # prints "Tue"
print three           # prints "Wed"
print four           # prints "Thu"
print five            # prints "Fri"
print six           # prints "Sat"
print seven           # prints "Sun"




# turn individual variables into a tuple:

r = 0
g = 255
b = 0
green = (r,g,b)
print green       # prints  (0,255,0)