How to add items to a list in python

The append() method adds an item to the end of the list.

Example

# append 'Yen' to the list currencies.append('Yen')

# Output: ['Dollar', 'Euro', 'Pound', 'Yen']

The syntax of the append() method is:

append() Parameters

The method takes a single argument

• item - an item (number, string, list etc.) to be added at the end of the list

Return Value from append()

The method doesn't return any value (returns None).

Example 1: Adding Element to a List

# Add 'guinea pig' to the list animals.append('guinea pig')

Output

Example 2: Adding List to a List

# appending wild_animals list to animals animals.append(wild_animals)

Output

In the program, a single item (wild_animals list) is added to the animals list.

Note: If you need to add items of a list (rather than the list itself) to another list, use the extend() method.

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To add an item to the end of the list, use the append() method:

Using the append() method to append an item:

thislist = ["apple", "banana", "cherry"] thislist.append("orange")

print(thislist)

Insert Items

To insert a list item at a specified index, use the insert() method.

The insert() method inserts an item at the specified index:

Insert an item as the second position:

thislist = ["apple", "banana", "cherry"] thislist.insert(1, "orange")

print(thislist)

Note: As a result of the examples above, the lists will now contain 4 items.

Extend List

To append elements from another list to the current list, use the extend() method.

Add the elements of tropical to thislist:

thislist = ["apple", "banana", "cherry"] tropical = ["mango", "pineapple", "papaya"] thislist.extend(tropical)

print(thislist)

The elements will be added to the end of the list.

Add Any Iterable

The extend() method does not have to append lists, you can add any iterable object (tuples, sets, dictionaries etc.).

Add elements of a tuple to a list:

thislist = ["apple", "banana", "cherry"] thistuple = ("kiwi", "orange") thislist.extend(thistuple)

print(thislist)