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16 min readIntermediate

Python Interview Guide

Master Python fundamentals, data structures, OOP concepts, decorators, generators, and common interview patterns.

PythonOOPDecoratorsGenerators

Introduction

Python is widely used for backend development, data science, and automation. This guide covers key Python concepts for interviews.

Object-Oriented Programming

class Animal:
    def __init__(self, name):
        self.name = name

    def speak(self):
        pass

class Dog(Animal):
    def speak(self):
        return f"{self.name} barks"

dog = Dog("Buddy")
print(dog.speak())  # Output: Buddy barks

Decorators

def my_decorator(func):
    def wrapper(*args, **kwargs):
        print("Function called")
        return func(*args, **kwargs)
    return wrapper

@my_decorator
def say_hello():
    print("Hello!")

say_hello()  # Prints: Function called, then Hello!

Generators

def my_generator():
    yield 1
    yield 2
    yield 3

for value in my_generator():
    print(value)  # Prints: 1, 2, 3

Common Patterns

  • List comprehensions
  • Lambda functions
  • Context managers (with statement)
  • Exception handling
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