In this article, we can discuss Python Access List Items.

Python Access List Items

Python Access List Items

Access Items

List items are indexed and you can access them by referring to the index number

Example

Print the second item of the list

thislist = ["apple", "banana", "cherry"]
print(thislist[1])

Note: The first item has index 0.

Negative Indexing

Negative indexing means start from the end

-1 refers to the last item, -2 refers to the second last item etc

Example

Print the last item of the list

thislist = ["apple", "banana", "cherry"]
print(thislist[-1])

Range of Indexes

You can specify a range of indexes by specifying where to start and where to end the range.

When specifying a range, the return value will be a new list with the specified items.

Example

Return the third, fourth, and fifth item

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[2:5])

Note: The search will start at index 2 (included) and end at index 5 (not included).

Remember that the first item has index 0.

By leaving out the start value, the range will start at the first item

Example

This returns the items from the beginning to, but NOT including, “kiwi”

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[:4])

By leaving out the end value, the range will go on to the end of the list

Example

This returns the items from “cherry” to the end

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[2:])

Range of Negative Indexes

Specify negative indexes if you want to start the search from the end of the list

Example

This returns the items from “orange” (-4) to, but NOT including “mango” (-1)

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[-4:-1])

Check if Item Exists

To determine if a specified item is present in a list use the in keyword

Example

Check if “apple” is present in the list

thislist = ["apple", "banana", "cherry"]
if "apple" in thislist:
  print("Yes, 'apple' is in the fruits list")

Also Check out How to Add Elements to a List in Python

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