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Python List ~ Shortcut

These methods can be used to perform a variety of tasks, such as adding, removing, sorting, and searching lists.

Python lists are one of the most versatile data structures in the language, and they come with a wide range of built-in methods.

Here are 12 most important Python list methods :

  • 𝚊𝚙𝚙𝚎𝚗𝚍(): Add an item to the end of the list.
  • 𝚒𝚗𝚜𝚎𝚛𝚝(): Insert an item at a specific index in the list.
  • 𝚛𝚎𝚖𝚘𝚟𝚎(): Remove the first occurrence of an item from the list.
  • 𝚙𝚘𝚙(): Remove the last item from the list, or an item at a specific index.
  • 𝚜𝚘𝚛𝚝(): Sort the list in ascending order.
  • 𝚛𝚎𝚟𝚎𝚛𝚜𝚎(): Reverse the order of the list.
  • 𝚌𝚘𝚞𝚗𝚝(): Count the number of occurrences of an item in the list.
  • 𝚒𝚗𝚍𝚎𝚡(): Find the index of the first occurrence of an item in the list.
  • 𝚌𝚘𝚙𝚢(): Create a copy of the list.
  • 𝚎𝚡𝚝𝚎𝚗𝚍(): Add the elements of another list to the end of the list.

It is important to note that some of these methods, such as 𝚜𝚘𝚛𝚝(), 𝚛𝚎𝚟𝚎𝚛𝚜𝚎(), and 𝚎𝚡𝚝𝚎𝚗𝚍(), modify the original list.

If you do not want to modify the original list, you should create a copy of it before using the method.

Here are some examples of how to use Python list methods for professional use:

Create a list of numbers

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

Add a new item to the end of the list

my_list.append(6)

Insert a new item at index 0

my_list.insert(0, 0)

Remove the first occurrence of the number 3

my_list.remove(3)

Remove the last item from the list

my_list.pop()

Sort the list in ascending order

my_list.sort()

Reverse the order of the list

my_list.reverse()

Count the number of occurrences of the number 3 in the list

count = my_list.count(3)

Find the index of the first occurrence of the number 3 in the list

index = my_list.index(3)

Create a copy of the list

my_list_copy = my_list.copy()

Add the elements of another list to the end of the list

my_list.extend([6, 7, 8])

Python list methods can be used to perform a wide variety of tasks, and they are an essential part of any IT professional’s toolkit.