04_lists.py

# Initialize it
test_list = [1, 2, 3]

# Append 4
test_list.append(4)
# Insert 0 at 0th position
test_list.insert(0, 0)

print("Test list: {}\n".format(test_list))

# Initialize it using its class name
next_list = list()
next_list.append(7)
next_list.append(2)
next_list.append(5)
next_list.append(1)

print("Next list: {}".format(next_list))
print("Sorted next list (does not mutate): {}\n".format(sorted(next_list)))

print("So here's next_list: {}".format(next_list))
if 3 in next_list:
    print("3 is here!")
else:
    print("No 3 :(")

if 2 in next_list:
    print("2 is here!")
else:
    print("No 2 :(")

# Did you know lists can contain *any* data type?
next_list.insert(0, "test")
next_list.append(12)
next_list.append(25)
next_list.append(-4)
next_list.append([2, 5])

## Slicing syntax: [start:stop:step]. Note that stop is exclusive -- the element
# at that index is not included
print("\nRemember our dear list {}?\n".format(next_list))
print("List, but no first element: {}".format(next_list[1:]))
print("List, but no last element: {}".format(next_list[:len(next_list)-1]))
print("List, some middle elements: {}".format(next_list[2:6]))
print("List, but every other element: {}".format(next_list[::2]))
print("List, but reversed: {}".format(next_list[::-1]))