List Operations & Slicing | Python - Beginner to Advance | @codingwithspy

List operations and slicing are two important concepts in Python.

List operations allow you to perform various actions on a list, such as adding, removing, and sorting elements. Slicing allows you to extract a subset of elements from a list.

Here are some common list operations:

Append: Adds an element to the end of the list.

Extend: Adds multiple elements to the end of the list.

Insert: Inserts an element at a specific index in the list.

Remove: Removes an element from the list.

Pop: Removes and returns the last element from the list.

Reverse: Reverses the order of the elements in the list.

Sort: Sorts the elements in the list in ascending order.

Here are some common slicing operations:

Get a slice: Returns a subset of elements from the list. The syntax is list[start:stop:step], where start is the index of the first element to include in the slice, stop is the index of the first element to exclude from the slice, and step is the number of elements to skip between each element in the slice.

Get the first element: Returns the first element in the list. The syntax is list[0].

Get the last element: Returns the last element in the list. The syntax is list[-1].

Get a copy of the list: Returns a copy of the list. The syntax is list[:].

Here is an example of how to use list operations and slicing:

list1 = [1, 2, 3, 4, 5]

# Append an element to the end of the list.

# Extend the list with multiple elements.

# Insert an element at a specific index in the list.

# Remove an element from the list.

# Pop the last element from the list.

# Reverse the order of the elements in the list.

# Sort the elements in the list in ascending order.

# Get a slice of the list.
list2 = list1[1:4]

# Get the first element in the list.
first_element = list1[0]

# Get the last element in the list.
last_element = list1[-1]

# Get a copy of the list.
list3 = list1[:]

print(list1)
print(list2)
print(first_element)
print(last_element)
print(list3)

Output:

[10, 1, 2, 4, 5, 6, 7, 8, 9]
[1, 2, 4]
10
9
[10, 1, 2, 4, 5, 6, 7, 8, 9]

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