Python courses

Python List Methods append() Adds a single element to the end of the list.  my_list = [1, 2, 3] my_list.append(4) print(my_list)  # Output: [1, 2, 3, 4]  extend() Extends the list by appending elements from an iterable (e.g., another list).  my_list = [1, 2, 3] my_list.extend([4, 5]) print(my_list)  # Output: [1, 2, 3, 4, 5]

Joining Lists in Python Introduction In Python, lists are versatile data structures that allow you to store and manipulate collections of items. Joining lists is a common operation that involves combining multiple lists into a single list. This lesson explores various methods to join lists in Python, providing detailed examples for each approach. Methods for

Copying Lists in Python Introduction In Python, lists are common data structures that can contain multiple elements. Sometimes, you might need to create a copy of a list, whether to manipulate data or to avoid unintended side effects in your programs. Why Copy a List? Copying a list is important for several reasons: Data Preservation:

Sorting in Reverse Order in Python Sorting in reverse order means arranging elements from highest to lowest or in the opposite of the usual sorting order. Python provides several ways to achieve this, both with and without custom sorting criteria. Basic Reverse Order Sorting with sort() The sort() method allows you to sort a list

Case-Insensitive Sorting in Python Case-insensitive sorting allows you to sort strings without considering whether characters are uppercase or lowercase. By default, Python sorts strings with case sensitivity, which can lead to unexpected results if you don’t account for case differences. Basic Case-Sensitive Sorting Before diving into case-insensitive sorting, let’s see how default sorting works in

Custom Sorting Functions in Python Custom sorting functions allow you to precisely control how elements in a list are sorted by defining specific criteria. The key parameter in the sort() and sorted() methods is used to specify these custom sorting criteria. Using key for Custom Sorting The key parameter accepts a function that takes an

Descending Order Sorting in Python Descending order sorting arranges elements from highest to lowest. This can be applied to both numeric and alphanumeric lists. Let’s explore how to perform this sorting in Python. Using .sort() for Descending Order The .sort() method sorts the elements of a list in place. By default, it sorts in ascending

Alphanumeric Sorting of Lists in Python Using .sort() The .sort() method sorts the elements of a list in place, meaning it modifies the original list directly. By default, it sorts elements in ascending order (lexicographically for strings). Basic Example  # List of strings fruits = [“apple”, “banana”, “orange”, “kiwi”] # In-place sorting fruits.sort() print(“In-place alphanumeric