List Operation
Menu
List Operation
my_list = [1, 2, 3, "hello", True]
This creates a list with 5 items, including an integer, two more integers, a string, and a boolean value.
- Accessing an item in a list:
print(my_list[3]) # prints "hello"
This accesses the 4th item in the list, which is the string “hello”. Note that list indexes start at 0, so the 4th item has index 3.
- Slicing a list:
print(my_list[1:4]) # prints [2, 3, "hello"]
This creates a new list with items from index 1 (inclusive) to index 4 (exclusive), which are the integers 2 and 3 and the string “hello”.
- Modifying a list:
my_list[0] = 4 print(my_list) # prints [4, 2, 3, "hello", True]
This changes the first item in the list from 1 to 4.
- Adding an item to the end of a list:
my_list.append("world") print(my_list)
# prints [4, 2, 3, "hello", True, "world"]
This adds a new item, the string “world”, to the end of the list.
- Removing an item from a list:
my_list.remove(2) print(my_list)
# prints [4, 3, "hello", True, "world"]
This removes the first occurrence of the integer 2 from the list.
These are just a few basic list operations in Python, but there are many more methods and functions that can be used with lists.
Menu
Join To Get Our Newsletter