tuple_example_and_properties

#adapted from MIT online course

# Tuples are immutable and defined by parentheses

new_tuple = (5, 6, 7, 8)
print ("new_tuple is:", new_tuple)

# We can index them, just like strings
print ("new_tuple[2] is:", new_tuple[2])

# And iterate through them:
for item in new_tuple:
    print (item)

# Even show how long they are
print ("Tuple length is:", len(new_tuple))

###############################
#My Favorite stuff
# and iterate through indicies
###############################

for index in range(len(new_tuple)):
    print ("Index is:", index)
    print ("Value at that index is:", new_tuple[index])

# But because they are immutable, we cannot redefine
#  a single element (remember this does work with lists, though)
#new_tuple[1] = 77 # Returns an error


# We can also do something called _tuple unpacking_

(a, b, c, d) = new_tuple
print ("a is:", a)
print ("b is:", b)
print ("c is:", c)
print ("d is:", d)

# Make sure that you always have the same number of
# variables when you unpack a tuple!

# Tuples are immutable. To change a tuple, we would need
# to first unpack it, change the values, then repack it:

# Redefine b
b = 77

# Repack the tuple
new_tuple = (a, b, c, d)
print ("new_tuple is now:", new_tuple)