Python Interview Guide: From Fundamentals to Advanced Concepts with Real-World Applications

Credit : Software Professional

Introduction

Python has become the go-to language for data science, web development, and automation. This comprehensive guide covers essential Python concepts with practical examples and their business applications.

Table of Contents

1. Basic Python Concepts
2. Data Structures and Algorithms
3. Functions and Error Handling
4. Object-Oriented Programming
5. File Operations and System Interaction
6. Advanced Python Features
7. Common Programming Challenges
8. Best Practices and Tips

1. Basic Python Concepts

Q1: Why is Python an Interpreted Language?

Technical Explanation:
Python executes code line by line without requiring compilation, making it easier to debug and develop.

class RevenueCalculator:
    def __init__(self):
        self.transactions = []

    def add_transaction(self, amount: float):
        """Add new transaction"""
        try:
            self.transactions.append(float(amount))…