Decorators in Python A decorator is a function that modifies the behavior of another function without permanently modifying it. Decorators are a powerful tool that use closure functions. Basic Concept A decorator: Simple Example python def simple_decorator(func): def wrapper(): print(“Something is happening before the function is called.”) func() print(“Something is happening after the function is…

Python re group() and groups() Methods Explained The group() and groups() methods are used with match objects to extract captured groups from regex patterns. They work on the result of re.search(), re.match(), or re.finditer(). group() Method groups() Method Example 1: Basic Group Extraction python import retext = “John Doe, age 30, email: john.doe@email.com”# Pattern with multiple capture groupspattern = r'(\w+)\s+(\w+),\s+age\s+(\d+),\s+email:\s+([\w.]+@[\w.]+)’///The Pattern: r'(\w+)\s+(\w+),\s+age\s+(\d+),\s+email:\s+([\w.]+@[\w.]+)’Breakdown by Capture…

Indexing and Slicing in Python Lists Read Indexing and slicing are fundamental operations to access and extract elements from a list in Python. 1. Indexing (Accessing Single Elements) Example 1: Basic Indexing python fruits = [“apple”, “banana”, “cherry”, “date”, “fig”] # Positive indexing print(fruits[0]) # “apple” (1st element) print(fruits[2]) # “cherry” (3rd element) # Negative indexing print(fruits[-1]) # “fig”…