# examples of list comprehensions
#
# Matt Bishop, ECS 36A, Winter 2019
#
# first, a for loop
result = [ ]
for i in range(9):
    result = result + [ i * i ]
print("As in a for loop:", result)

# now do it with list comprehension
lcresult = [i * i for i in range(9)]
print("As in list comprehension:", lcresult)

#
# now we only do this for even numbers up to 6, then 7, then 8
#
# the way we have seen it in the past
result = [ ]
for i in range(9):
    if i % 2 == 0 or i == 7:
        result = result + [ i * i ]
print("\nfor loop, even squares and 7 up to 8:", result)

# and using list comprehension
lcresult = [i * i for i in range(9) if i % 2 == 0 or i == 7]
print("list comprehension, same thing:", lcresult)