What are Modules and Packages in Python? A Comprehensive Guide

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Question 1.
What is modules and packages in Python?
Answer.
In Python, modules and packages are essential concepts for organizing and structuring code in larger projects. They help in achieving modularity, code reuse, and maintainability. Let's dive into each of these concepts in detail:
Modules:
A module in Python is simply a file containing Python code. This code can consist of variables, functions, and classes. Each Python script you write can be considered a module.
For Example:
Suppose you have a file named math_operations.py containing mathematical functions like add, subtract, multiply, and divide. You can import this module into another script using import math_operations, and then access its functions like math_operations.add().
Packages:
A package is a collection of modules organized in a hierarchical directory structure. A package directory must contain a special file called `__init__.py`, which can be empty or can contain initialization code for the package.
For Example:
Suppose you have a package named utilities containing modules like math_operations, string_operations, etc. You can import the math_operations module as from utilities import math_operations, and then access its functions like utilities.math_operations.add().
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These questions cover a range of topics and are designed to assess an experienced candidate's knowledge and understanding of Python programming concepts and best practices.
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