Python OOP for Interviews | Singleton, Thread-Safe Singleton, Getting Class Instance Count
Codes for this video:
• Singleton Class - https://github.com/shadabsk/interview...
• Thread-Safe Singleton Class - https://github.com/shadabsk/interview...
• Tracking Class Instance Count - https://github.com/shadabsk/interview...
In this video, we explore interview-oriented Python OOP patterns that every backend or fullstack engineer should know.
You’ll understand how Singleton works, how to make it thread-safe, and how to track the number of instances created by a class.
These concepts frequently appear in mid-senior-level interviews.
Topics covered:
• Singleton class implementation
• Thread-safe Singleton using locking
• Tracking class instance count
• Clean OOP design for interview settings
• Python implementation explained step-by-step
• Common pitfalls and interviewer expectations
Chapters:
00:00 - Overview
00:20 - Basic Singleton Class Implementation
03:14 - Thread-Safe Singleton Class Implementation
06:24 - Tracking Class Instance Count Using a Class Variable and a Global Variable
This video is part of my Interview Prep Series, designed to help both beginners and experienced professionals strengthen their foundations and crack technical interviews with confidence.
My goal is simple:
If even one part of my experience helps you in your preparation, this entire series will be worth it.
Resources:
GitHub Repository (Complete Series Code and Solutions):
https://github.com/shadabsk/interview...
Connect with me:
GitHub: https://github.com/shadabsk
LinkedIn: / shadabsk
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