Python List Methods Now In An Easy And Efficient Explanation

Python List Methods and Preface

There are many types of Python List Methods, in this Article we are discussing 8 of them:

• Append()
• Clear()
• Copy()
• Sort()
• Remove()
• Insert()
• Pop()
• Reverse()

Before you learn about Python List Methods:

Before you learn about Python List Methods, you need to have some basic idea about what a list is.

In Python, a list is a collection of pieces of data.

A list is surrounded by square brackets [ ] with each item separated by a comma ( , ), and can contain anywhere from zero to infinity items (or however many your computer will allow).

Strings, numbers, booleans, even other lists can be items in a list.

Lists are ordered and mutable (changeable), meaning each item is assigned to a specific index and can be sorted, and has the ability to be altered.

Python List append():

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

list_1 = [1,2,3,4,5]
list_1.append(6)
print(list_1)

Output:

[1, 2, 3, 4, 5, 6]

Python List clear():

The append() method empties a given list. It doesn’t take any parameters

list_1 = [1,2,3,4,5]
list_1.clear()
print(list_1)

Output:

[]

Python List copy():

The copy() method returns a shallow copy of the list.

list_1 = [1,2,3,4,5]

#Copying a list using '='
list_2 = list_1

#Copying a list using the copy() method
list_3 = list_1.copy()

#Editing list_1 will change the content in list_2, but not in list_3
list_1.append(10)


print(list_1)
print(list_2)
print(list_3)

Output:

[1, 2, 3, 4, 5, 10]
[1, 2, 3, 4, 5, 10]
[1, 2, 3, 4, 5]

Python List sort():

The sort() method sorts the elements of a given list in a specific ascending or descending order..

list_1 = [2, 1, 4, 3, 5]
list_1.sort()
print(list_1)

Output:

[1, 2, 3, 4, 5]

Python List remove():

The remove() method removes the first matching element (which is passed as an argument) from the list

list_1 = [1,2,3,4,5]
list_1.remove(5)
print(list_1)

Output:

[1, 2, 3, 4]

Python List insert():

The list insert() method inserts an element to the list at the specified index.

list_1 = [1,2,3,4,5]

#Index =0  Element=6
list_1.insert(0, 6)
print(list_1)

Output:

[6, 1, 2, 3, 4, 5]

Python List pop():

The pop() method removes the last item from the list and returns the removed item.

list_1 = [1,2,3,4,5]

print(list_1.pop())

Output:

5

Python List reverse():

The pop() method removes the last item from the list and returns the removed item.

list_1 = [1,2,3,4,5]

list_1.reverse()

print(list_1)

Output:

[5, 4, 3, 2, 1]

Conclusion:

In today’s post, we’ve discussed 8 important and basic list methods, and when to call them. If you are on your way to becoming a Pythonista, you might find our site really helpful. Hit this link for more python related posts
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