(Python) 리스트 내포

data_list1 = [1, 2, 3, 4, 5]
 
print("data_list1: {0} {1}".format(type(data_list1), data_list1))  # data_list1: <class 'list'> [1, 2, 3, 4, 5]
 
data_list2 = []
for item in data_list1:
    data_list2.append(item)
print("data_list2: {0} {1}".format(type(data_list2), data_list2))  # data_list2: <class 'list'> [1, 2, 3, 4, 5]
 
data_list3 = [item for item in data_list1]
print("data_list3: {0} {1}".format(type(data_list3), data_list3))  # data_list3: <class 'list'> [1, 2, 3, 4, 5]
 
data_list4 = []
for item in data_list1:
    if item % 2 ==1:
        data_list4.append(item)
print("data_list4: {0} {1}".format(type(data_list4), data_list4))  # data_list4: <class 'list'> [1, 3, 5]
 
data_list5 = [item for item in data_list1 if item % 2 == 1]
print("data_list5: {0} {1}".format(type(data_list5), data_list5))  # data_list5: <class 'list'> [1, 3, 5]
 
data_list8 = [x * y for x in data_list1 if x % 2 == 1 for y in data_list1 if y % 2 == 0]
print("data_list8: {0} {1}".format(type(data_list8), data_list8))  # data_list8: <class 'list'> [2, 4, 6, 12, 10, 20]